Relevant bibliographies by topics / Field spectrometry

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Field spectrometry'

Author: Grafiati
Published: 11 March 2023

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Journal articles on the topic "Field spectrometry"

1

Dorozhkin, I. P., Yu V. Baklanova, and Ye V. Mustafina. "DEVELOPMENT OF FIELD SPECTROMETRY DATABASE." NNC RK Bulletin, no. 2 (October 17, 2021): 19–24. http://dx.doi.org/10.52676/1729-7885-2021-2-19-24.

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The paper considers the issues in design and development of databases for storage and processing gamma-spectrometric information. A model is presented that allows one to describe the conceptual schemes for storing and processing data obtained during field gamma-spectrometric surveys in principle and, in particular, on the territory of the Semipalatinsk test site. The possibilities of the database of field spectrometry are described. The interface for interaction between the user and the database management system has been implemented.
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Pollard, Matthew J., Christopher K. Hilton, Hongli Li, Kimberly Kaplan, Richard A. Yost, and Herbert H. Hill. "Ion mobility spectrometer—field asymmetric ion mobility spectrometer-mass spectrometry." International Journal for Ion Mobility Spectrometry 14, no. 1 (March 9, 2011): 15–22. http://dx.doi.org/10.1007/s12127-011-0058-9.

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DEUTSCH, JOSEPH, CHAIM GILON, and MICHAEL CHOREV. "FIELD DESORPTION MASS SPECTROMETRY." International Journal of Peptide and Protein Research 18, no. 2 (January 12, 2009): 203–7. http://dx.doi.org/10.1111/j.1399-3011.1981.tb02058.x.

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Renault, Mikael, Yassine Hadjar, Sylvain Blaize, Aurélien Bruyant, Laurent Arnaud, Gilles Lerondel, and Pascal Royer. "Bidimensional near-field sampling spectrometry." Optics Letters 35, no. 19 (September 30, 2010): 3303. http://dx.doi.org/10.1364/ol.35.003303.

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Grimm, Ronald L., and J. L. Beauchamp. "Field-Induced Droplet Ionization Mass Spectrometry." Journal of Physical Chemistry B 107, no. 51 (December 2003): 14161–63. http://dx.doi.org/10.1021/jp037099r.

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Hawkes, N. P., K. A. A. Gamage, and G. C. Taylor. "Digital approaches to field neutron spectrometry." Radiation Measurements 45, no. 10 (December 2010): 1305–8. http://dx.doi.org/10.1016/j.radmeas.2010.06.043.

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Leisch, M. "Three-dimensional field ion mass spectrometry." Fresenius' Journal of Analytical Chemistry 349, no. 1-3 (1994): 102–6. http://dx.doi.org/10.1007/bf00323231.

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van der Greef, J. "Field desorption mass spectrometry in bioanalysis." TrAC Trends in Analytical Chemistry 5, no. 9 (January 1986): 241–46. http://dx.doi.org/10.1016/0165-9936(86)85062-2.

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Behrens, Rolf, Hayo Zutz, and Julian Busse. "Spectrometry of pulsed photon radiation." Journal of Radiological Protection 42, no. 1 (January 17, 2022): 011507. http://dx.doi.org/10.1088/1361-6498/ac3dd0.

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Abstract The energy distribution (spectrum) of pulsed photon radiation can hardly be measured using active devices, therefore, a thermoluminescence detector (TLD)-based few-channel spectrometer is used in combination with a Bayesian data analysis to help resolve this problem. The spectrometer consists of 30 TLD layers interspaced by absorbers made of plastics and metals with increasing atomic numbers and thickness. Thus, the main idea behind the device is the deeper the radiation penetrates—the higher the radiation’s energy when the radiation impinges perpendicular to the front of the spectrometer. From the doses measured in the TLD layers and from further prior available information, the photon spectrum is deduced using a Bayesian data analysis leading to absolute spectra and doses including their uncertainties and coverage intervals. This spectrometer was successfully used in two different scenarios, i.e. for the spectrometry of the radiation field two different industrial type open beam pulsed x-ray generators and secondly in three different radiation fields of a medical accelerator.
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Purves, Randy W., and Roger Guevremont. "Electrospray Ionization High-Field Asymmetric Waveform Ion Mobility Spectrometry−Mass Spectrometry." Analytical Chemistry 71, no. 13 (July 1999): 2346–57. http://dx.doi.org/10.1021/ac981380y.

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Dissertations / Theses on the topic "Field spectrometry"

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Brown, Lauren J. "Field asymmetric waveform ion mobility spectrometry-mass spectrometry studies of peptides and proteins." Thesis, Loughborough University, 2013. https://dspace.lboro.ac.uk/2134/12001.

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Field asymmetric waveform ion mobility spectrometry (FAIMS) is a gas phase atmospheric pressure separation technique that exploits the difference in the mobility of ions in alternating low and high electric fields as they are carried between two electrodes. In this thesis, a miniaturised FAIMS separation step has been applied to increase selectivity, enhance sensitivity and improve the quality of mass spectral data for rapid, high-throughput protein and peptide analysis. In Chapter 2, charge state separations were used to generate pseudo-peptide mass fingerprint data by FAIMS-MS, permitting confident protein identification using ESI sample introduction as an alternative to MALDI-TOF-MS methods. In addition, pre-cursor ions were targeted prior to MS/MS analysis. Chapter 3 describes the analysis of intact proteins by miniaturised FAIMS-MS. Multiple charge states of intact proteins were separated on the basis of differences in differential mobility. Higher charge states were found to be transmitted at similar CVs suggesting that the miniaturised FAIMS device was separating ions on the basis of 3D structure. In addition, multiple species could be observed at the same m/z suggesting the presence of different protein conformers. In Chapter 4, miniaturised FAIMS was used to select ions on the basis of differential mobility prior to in-source collision-induced dissociation CID, LC and ToF-MS analysis for qualitative and quantitative analysis of peptides mixtures. This was applied to the analysis of co-eluting model peptides and tryptic peptides derived from human plasma proteins, allowing precursor ion selection and CID to yield product ion data suitable for peptide identification via database searching.
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Bozec, Laurent. "Near-field photothermal Fourier-transform infrared micro-spectrometry." Thesis, Lancaster University, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.418454.

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Syed, Sarfaraz Uddin. "Quadrupole mass spectrometry under the influence of magnetic field." Thesis, University of Liverpool, 2012. http://livrepository.liverpool.ac.uk/5533/.

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A Quadrupole Mass Spectrometer (QMS) is an instrument for measuring concentrations of atoms and molecules by separating atomic and molecular ions according to their mass-to-charge ratios (m/z). It consists primarily of an ion source, quadrupole mass filter (QMF) and detector. Generally, QMF resolution can be improved by increasing the number of rf cycles of the alternating electric field the ion experiences when passing through the mass filter. In order to improve the resolution, the dimensions of the QMF or the operating parameters are to be changed. However geometric modifications to improve performance increase the manufacturing cost and usually the size of the instrument. A low cost method to increase the resolution of a given QMS is the application of magnetic field to the mass filter. The work is mainly concerned with the performance of a QMS under the influence of magnetic field. Significant improvement in QMS performance was obtained under certain magnetic field conditions, and these have been explained in terms of our theoretical model developed in the University of Liverpool. The theoretical approach assumed in the model is that the QMF contains hyperbolic rods as electrodes and that the magnetic field acts over the full length of the mass filter assembly. This model is capable of accurate simulation of spectra allowing the user to specify different values of mass spectrometer dimensions and applied input signals. The model has been upgraded for better sensitivity, and to simulate the QMF at very high number of rf cycles. Simulation and experimental results were presented for different conditions. This work also demonstrates the modeling of mass spectra of gases using the theoretical model for stability zones 1 and 3. The performance of QMF operating in stability zones 1 and 3 has been derived and a relationship between maximum obtainable resolution and scan line is obtained.
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Thomas, Benjamin. "Tandem time-of-flight mass spectrometry incorporating quadratic-field technology." Thesis, University of Warwick, 2000. http://wrap.warwick.ac.uk/66998/.

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The study involved the desig~ constructio~ optimisation and utilisation of a novel tandem time-of-flight (TOF-TOF) instrument. The instrument was designed to use a laser ion source capable of laser desorption or matrix-assisted laser desorption/ionisation. The instrument used a twin ion mirror geometry in which the first ion mirror was a single-stage ion mirror, while the second ion mirror was a quadratic-field ion mirror. The instrument was designed for highenergy (>10keV) collision-induced dissociation (CID). The initial design criteria of a tandem time-of-flight spectrometer are discussed. The design and construction of the vacuum chamber and pumping system are discussed. The design and construction of the laser ion source are covered in detail. Computer simulations of typical ion trajectories were calculated using the SIMION program. The design and construction of the steering optics, single-stage ion mirror and pulsed mass gate are discussed. Computer simulations of ion trajectories were used to characterise the ion optical properties of the system. Experiments to characterise the energy focusing properties and transmission of the single-stage ion mirror were conducted. The mass resolving power of the single-stage ion mirror were characterised. The single-stage ion mirror achieved a resolution of2000 full-width half-maximum (FWHM). The design and construction of the differentially pumped collision-cell and the quadratic-field ion mirror are outlined. Experiments to demonstrate the transmission of the collision-cell and quadratic-field ion mirror are discussed. Experiments to characterise the energy focusing properties of the quadratic-field ion mirror were conducted. The full instrument achieved precursor mass resolving powers of approximately 7000 (FWHM) for laser desorbed species and 3500 (FWHM) for MALDI generated peptide species. Initial CID results are presented. The study thoroughly discusses the problems with the current instrument configuration and goes on to propose solutions to the problems encountered.
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Smith, Robert W. "An evaluation of miniaturised field asymmetric waveform ion mobility spectrometry hyphenated with time-of-flight mass spectrometry." Thesis, Loughborough University, 2014. https://dspace.lboro.ac.uk/2134/17837.

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In this thesis, the performance of a miniaturised field asymmetric waveform ion mobility spectrometry (FAIMS) device hyphenated with time-of-flight mass spectrometry is studied and evaluated for analysis of a variety of compounds in different sample matrices. FAIMS is a selective spectrometer which is highly orthogonal to mass spectrometry and has the potential for enhancing sensitivity and improve selectivity of rapid analyses. In Chapter 2, the performance of the miniaturised FAIMS device is tested for stability and transmission under a wide range of ion source conditions. An investigation of three different systems, including pairs of isobaric, isomeric and near-mass ions shows that miniaturised FAIMS has the ability to distinguish between analytes that are challenging to separate by mass spectrometry. Chapter 3 explores the effect of changing the composition of the carrier gas by observing the effect of adding gas modifiers on the FAIMS spectra of small molecules, peptides and proteins. Chapter 4 investigates the advantages of combining a fast FAIMS separation with mass spectrometry in the analysis of nitrogen-containing pharmaceutical impurities, where FAIMS is found to offer additional selectivity. In Chapter 5, the development of a UHPLC-FAIMS-MS method for the quantitative determination of a drug metabolite in urine is reported. UHPLC-FAIMS-MS shows improvements in signal-to noise and linear dynamic range as well as a reduction in chemical noise, demonstrating the potential of combining FAIMS with mass spectrometry.
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Holmes, Colette Gail. "Field sampling and microcolumn preconcentration techniques in inductively coupled plasma spectrometry." Thesis, Sheffield Hallam University, 1996. http://shura.shu.ac.uk/19820/.

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This thesis is concerned with analytical studies on the trace analytes barium, cadmium, cobalt, chromium, copper, iron, manganese, nickel, lead, vanadium and zinc, present in high purity and highly complex matrices. The technique utilises activated alumina microcolumns in a flow injection (FI) system, to perform analyte enrichment and matrix removal. The analytes, after retention on the microcolumn are subsequently eluted and quantified by inductively coupled plasma-emission spectrometry (ICP-ES).Initial studies focus on trace analytes in caesium iodide, however a selection of the alkali metal salts, lithium nitrate, potassium bromide, sodium fluoride and sodium chloride, are investigated. New methodology for the ultratrace determination of high purity alkali metal salts is thus provided. The microcolumn enrichment technique with ICP-ES detection is robust, utilises limited sample handling and simultaneously preconcentrates and separates the analytes from matrix components. Hence possible matrix interferences are eliminated and limits of detection are significantly improved, in comparison to conventional ICP-ES analysis. A technique for the determination of the total content of eleven trace analytes present in natural waters (mineral, reservoir), using microcolumns of activated alumina in a FI-ICP-ES is investigated. The use of the complexing agent tartaric acid is shown to be effective in improving analyte retention. The procedure is successfully applied to determination of these analytes in a certified river water reference material (SLRS-1). Due to low retention and elution efficiencies, the total content of the analytes Fe and V present in Buxton, Redmires and Langsett samples could not be accurately determined by this technique. Activated alumina microcolumns are utilised as a new field sampling tools. Samples are collected in the field and processed through the alumina microcolumns for the effective retention of desired analytes. Hence, an alumina microcolumn sampling stage to effect concentration and isolation prior to analytical measurement is at the core of the investigation. The overall aim is to extend the application of alumina microcolumns, and in particular to provide a new multi-element field sampling device, which gives high sample integrity and preconcentration.
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McGill, Colin Adam. "Studies of low-field nuclear magnetic resonance and Raman spectrometries for process analytical chemistry." Thesis, University of Strathclyde, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.248282.

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Murray, Jacolin Ann. "High Flow Air Sampling for Field Detection Using Gas Chromatography-Mass Spectrometry." BYU ScholarsArchive, 2010. https://scholarsarchive.byu.edu/etd/2414.

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The ability to rapidly detect and identify hazardous analytes in the field has become increasingly important. One of the most important analytical detection methods in the field is gas chromatography-mass spectrometry (GC-MS). In this work, a hand-portable GC-MS system is described that contains a miniature toroidal ion trap mass analyzer and a low thermal mass GC. The system is self-contained within the dimensions of 47 x 36 x 18 cm and weighs less than 13 kg. Because the instrument has a small footprint, it was used as the detector for an automated near-real-time permeation testing system. In permeation testing, materials that are used to make individual protective equipment such as gloves, masks, boots, and suits are exposed to hazardous analytes to determine how long the equipment can be worn safely. The system described herein could test five samples simultaneously. A multi-position valve rotated among the various sample streams and delivered time aliquots into the MS for quantitation. Current field air sampling techniques suffer from long desorption times, high pressure drops, artifact formation and water retention. These disadvantages can be avoided by concentrating the analytes in short open tubular traps containing thick films. There are several advantages to using polymer coated capillaries as traps, including fast desorption, inertness and low flow restriction. An air sampling trap was constructed utilizing open tubular traps for the concentration of semi-volatile organic compounds. The system consisted of multiple capillary traps bundled together, providing high sample flow rates. The analytes were desorbed from the multi-capillary bundle and refocused in a secondary trap. The simultaneous focusing and separation effect of a trap subjected to a negative temperature gradient was also explored. In this configuration, analytes were focused because the front of the peak was at a lower temperature than the rear of the peak and, hence, moved slower. In addition to the focusing effect, analytes with different volatilities focused at different temperatures within the gradient, allowing for separation.
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Kuzema, P. O., M. Ya Dovzhyk, and O. S. Kuzema. "Main Stages of Development and Recent Advances of Mass Spectrometry." Thesis, Sumy State University, 2015. http://essuir.sumdu.edu.ua/handle/123456789/42625.

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It has been presented the review and analysis of the main evolution stages of one of the most efficient methods for investigation of composition and properties of substances – mass spectrometry. The advantages and application area of the method were described, as well as physical and technical peculiarities of the devices for its realization were considered.
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Taylor, M. J. "Field desorption mass spectrometry applied to polymers and compounds relevant to their synthesis." Thesis, Swansea University, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.639167.

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Early chapters contain (i) a comprehensive survey of the techniques conception, development and reported applications of relevance, (ii) classical and the most recent theoretical treatment of the complex behaviour manifest in the FD mass spectrum, and (iii) a thorough description of the sophisticated instrumentation and experimental procedures which were used in these studies and facilitated a renaissance in the utility of FDMS. The versatility and utility of FDMS was rigorously tested, using an intimidating array of often novel compound classes covering a wide range of molecular weights and chemical functionality. Compounds studied included; organophosphazenes, alkyphenol-formaldehyde resins, liquid crystal monomers, phthalocyanines, various aliphatic and aromatic polymers and polymer additives. Comparisons have been made throughout the studies with other ionisation techniques to establish the most appropriate ionisation method for successful structural characterisation. The ability of FDMS to yield abundant molecular weight information has been explored in depth and the concomitant advantages and disadvantages of this behaviour have been assessed in context. Where necessary complementary spectroscopic and mass spectrometric information was obtained, used to assist in structural characterisation and demonstrated the benefits of adopting a multi-technique approach. The influence of compound class upon the inherent technical features of the technique, which include: ionisation efficiency; reproducibility; ionisation mechanisms; fragmentation; sample preparation; and experimental adaptations are presented and extended to tandem mass spectrometry. Collision-induced dissociation (CID) offered the means to obtain structural detail generally precluded by the low internal energy of the so-called field desorbed ions. These investigations have established that from being considered a somewhat esoteric analytical method, FDMS is a sophisticated yet routine analytical tool when used with the power of the modern mass spectrometer. Its utility is not confined to the mass spectrometric fraternity but extends to a much wider industrial community including a variety of research chemists and affiliated spectroscopic groups.
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Books on the topic "Field spectrometry"

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Field desorption mass spectrometry. New York: M. Dekker, 1990.

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Prohaska, Thomas, Johanna Irrgeher, Andreas Zitek, and Norbert Jakubowski, eds. Sector Field Mass Spectrometry for Elemental and Isotopic Analysis. Cambridge: Royal Society of Chemistry, 2014. http://dx.doi.org/10.1039/9781849735407.

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1945-, Lyon Philip A., and American Chemical Society, eds. Desorption mass spectrometry: Are SIMS and FAB the same? Washington, D.C: American Chemical Society, 1985.

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Einfeld, Wayne. Field-portable gas chromatograph/mass spectrometer: Inficon, Inc. HAPSITE. Las Vegas, Nev: National Exposure Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, 1998.

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National Exposure Research Laboratory (U.S.) and Sandia National Laboratories, eds. Field-portable gas chromatograph/mass spectrometer: Inficon, Inc. HAPSITE. Las Vegas, Nev: National Exposure Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, 1998.

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National Exposure Research Laboratory (U.S.) and Sandia National Laboratories, eds. Field-portable gas chromatograph/mass spectrometer: Inficon, Inc. HAPSITE. Las Vegas, Nev: National Exposure Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, 1998.

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National Exposure Research Laboratory (U.S.) and Sandia National Laboratories, eds. Field-portable gas chromatograph/mass spectrometer: Inficon, Inc. HAPSITE. Las Vegas, Nev: National Exposure Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, 1998.

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International Conference On Ion Formation from Organic Solids(IFOS IV) (4th 1987 Münster). Ion formation from organic solids (IFOS IV): Mass spectrometry of involatile material : proceedings of the Fourth International Conference, Münster, Federal Republic of Germany,September 21-23, 1987. Edited by Benninghoven A. 1932-. Chichester: Wiley, 1989.

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A, Hedin, Sundqvist B. U. R, Benninghoven A, Naturvetenskapliga forskningsrådet (Sweden), Nordic Committee for Accelerator Based Research., and International Conference on Ion Formation from Organic Solids (5th : 1989 : Lövånger, Sweden), eds. Ion formation from organic solids (IFOS V): Proceedings of the fifth international conference, Lövånger, Sweden, June 18-21, 1989. Chichester [England]: Wiley, 1990.

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A, Hedin, Sundqvist B. U. R, and Benninghoven A. 1932-, eds. Ion Formation from Organic Solids (IFOS V). Chichester: Wiley, 1990.

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Book chapters on the topic "Field spectrometry"

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Gross, Jürgen H. "Field Ionization and Field Desorption." In Mass Spectrometry, 381–413. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-10711-5_8.

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Gross, Jürgen H. "Field Ionization and Field Desorption." In Mass Spectrometry, 355–80. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/3-540-36756-x_8.

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Gross, Jürgen H. "Field Ionization and Field Desorption." In Mass Spectrometry, 497–537. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-54398-7_8.

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Schulten, H. R., and Si-en Sun. "Field Desorption and Field Ionization." In Mass Spectrometry in Environmental Sciences, 49–76. Boston, MA: Springer US, 1985. http://dx.doi.org/10.1007/978-1-4613-2361-7_3.

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Lammert, Stephen A. "Field Portable Mass Spectrometry." In Detection of Chemical, Biological, Radiological and Nuclear Agents for the Prevention of Terrorism, 83–98. Dordrecht: Springer Netherlands, 2014. http://dx.doi.org/10.1007/978-94-017-9238-7_6.

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Chabrillat, Sabine, Alexander F. H. Goetz, Harold W. Olsen, and Lisa Krosley. "Field and Imaging spectrometry For Identiication and Mapping of Expansive Soils." In Imaging Spectrometry, 87–109. Dordrecht: Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-0-306-47578-8_4.

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Stach, J., J. Flachowsky, H. Schelhorn, and M. Brodacki. "On-Site Analysis Using Ion Mobility Spectrometry." In Field Screening Europe, 359–62. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-009-1473-5_83.

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Heenen, P. H. "Mass Predictions from Mean-Field Calculations." In Atomic Physics at Accelerators: Mass Spectrometry, 401–7. Dordrecht: Springer Netherlands, 2001. http://dx.doi.org/10.1007/978-94-015-1270-1_41.

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Belford, M., S. Prasad, S. Peterman, E. Bonneil, J. Lanoix, C. Durette, P. Thibault, et al. "CHAPTER 6. Field Asymmetric Ion Mobility Spectrometry (FAIMS) for Advanced Mass Spectrometry." In Ion Mobility-Mass Spectrometry, 132–62. Cambridge: Royal Society of Chemistry, 2021. http://dx.doi.org/10.1039/9781839162886-00132.

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Stow, S. M., and J. C. Fjeldsted. "CHAPTER 3. Fundamentals of Uniform-field Drift Tube Ion Mobility and Collision Cross Section." In Ion Mobility-Mass Spectrometry, 52–82. Cambridge: Royal Society of Chemistry, 2021. http://dx.doi.org/10.1039/9781839162886-00052.

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Conference papers on the topic "Field spectrometry"

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Brown, Patricia A. "Field applications of ion-mobility spectrometry." In Enabling Technologies for Law Enforcement and Security, edited by Pierre Pilon and Steve Burmeister. SPIE, 1997. http://dx.doi.org/10.1117/12.266770.

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Bylsma, Jason, Fred Coburn, and Thomas McArthur. "Development and field test results of a novel multispectral imaging system for natural gas leak detection." In Imaging Spectrometry XXV: Applications, Sensors, and Processing, edited by Emmett J. Ientilucci and Christine L. Bradley. SPIE, 2022. http://dx.doi.org/10.1117/12.2633680.

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Shaw, Robert W., C. M. Barshick, J. P. Young, and J. M. Ramsey. "Laser Spectroscopy for Practical Isotope Ratio Measurements." In Laser Applications to Chemical Analysis. Washington, D.C.: Optica Publishing Group, 1994. http://dx.doi.org/10.1364/laca.1994.wb.3.

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Isotope ratio measurements are typically accomplished by methods that are seldom amenable to field use. An example is thermal ionization mass spectrometry (TIMS)i where solid samples are dissolved, a filament loaded with the resulting solution, the filament mounted in a source chamber, the mass spectrometer pumped to low pressure, the filament heated to produce analyte ions, and finally the ions separated according to mass in either space or time for counting. There is a need for field mass spectrometric measurements, particularly in the environmental remediation arena, where near real time results can save time and reduce costs. Miniaturized ion traps that can be deployed for field measurement of organics have been reported. 2 There currently are no isotope ratio methods in field use.
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Cañas, Chase, John P. Kerekes, Emmett J. Ientilucci, and Scott D. Brown. "Empirical validation of a hyperspectral systems model for subpixel target detection using data from a new UAS field collection." In Imaging Spectrometry XXV: Applications, Sensors, and Processing, edited by Emmett J. Ientilucci and Christine L. Bradley. SPIE, 2022. http://dx.doi.org/10.1117/12.2633609.

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Wuttig, Andreas, Rainer Riesenberg, and Guenter Nitzsche. "Integral field and multi-object spectrometry with MEMS." In International Symposium on Optical Science and Technology, edited by Michael R. Descour and Sylvia S. Shen. SPIE, 2002. http://dx.doi.org/10.1117/12.453360.

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Veličković, Suzana, and Xianglei Kong. "„Superalkali” clusters, production, potential application like energy storage materials." In 8th International Conference on Renewable Electrical Power Sources. SMEITS, 2020. http://dx.doi.org/10.24094/mkoiee.020.8.1.15.

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One of the major developments of the past century was the recognition of clusters as building blocks of new materials. “Superalkali” clusters because of their ionization energies which lower than alkaline atoms, present the excellent reducing agents; hence, they are recognized as good can-didates for the synthesis of unusually compounds. “Superalkalis”, plays an important role in the chemistry and material science because of their potential to serve as structural units for the assem-bly of novel nanostructured functional materials, such as nonlinear optical materials, hydrogen storage materials, as well as an excellent reduction reagent for decreasing emissions of carbon dioxide, nitrogen oxides, and molecular nitrogen. One way to get a cluster is to use unconventional methods. To date, the mass spectrometry has proven itself a crucial method, which has no alterna-tive, in the field of the production “superalkali” clusters. However, in order to obtain these clus-ters, it is necessary to make modifications of the mass spectrometers available on the market. With-in this paper, the possibilities of obtaining “superalkali” clusters by combining two classical meth-ods of mass spectrometry such as, Knudsen cell and the surface ionization within a magnetic mass spectrometer will be presented. The modified classic surface ionization mass spectrometry has con-firmed to be an efficient and inexpensive method for obtaining these clusters.
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Nunnally, M. "289. Preliminary Field Validation of a Near-Field Far-Field Mathematical Model With FTIR Spectrometry." In AIHce 2004. AIHA, 2004. http://dx.doi.org/10.3320/1.2758215.

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Yang, Moucheng, Tao Chen, Xuegong Zhou, Liang Zhao, Yunping Zhu, and Lingli Wang. "A Complete CPU-FPGA Architecture for Protein Identification with Tandem Mass Spectrometry." In 2019 International Conference on Field-Programmable Technology (ICFPT). IEEE, 2019. http://dx.doi.org/10.1109/icfpt47387.2019.00051.

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Zhou, Yunshen, Yao Lu, Lei Liu, Xi Huang, and Yongfeng Lu. "Magnetic-field-assisted femto-second laser open-air mass spectrometry." In ICALEO® 2016: 35th International Congress on Applications of Lasers & Electro-Optics. Laser Institute of America, 2016. http://dx.doi.org/10.2351/1.5118638.

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Margueron, S., R. Hammoum, P. Bourson, and M. Fontana. "Mapping Domain Walls of PPLN by Dark Field Polarized Raman Spectrometry." In 2007 Sixteenth IEEE International Symposium on the Applications of Ferroelectrics. IEEE, 2007. http://dx.doi.org/10.1109/isaf.2007.4393262.

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Reports on the topic "Field spectrometry"

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Atkinson, D. A., A. B. Crockett, and T. F. Jenkins. Field screening of soils contaminated with explosives using ion mobility spectrometry. Office of Scientific and Technical Information (OSTI), May 1997. http://dx.doi.org/10.2172/495731.

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Campbell, J. A., J. C. Linehan, and W. H. Robins. Coal liquefaction process streams characterization and evaluation. Characterization of coal-derived materials by field desorption mass spectrometry, two-dimensional nuclear magnetic resonance, supercritical fluid extraction, and supercritical fluid chromatography/mass spectrometry. Office of Scientific and Technical Information (OSTI), July 1992. http://dx.doi.org/10.2172/10174665.

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Schneider, J. F., J. D. Taylor, D. A. Bass, D. Zellmer, and M. Rieck. Evaluation of field-portable X-ray fluorescence spectrometry for the determination of lead contamination on small-arms firing ranges. Office of Scientific and Technical Information (OSTI), February 1995. http://dx.doi.org/10.2172/29374.

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Malhotra, R., D. F. McMillen, F. P. Burke, R. A. Winschel, and S. D. Brandes. Coal liquefaction process streams characterization and evaluation:. Characterization of coal liquids by field ionization mass spectrometry and iodotrimethylsilane derivatization. Office of Scientific and Technical Information (OSTI), January 1992. http://dx.doi.org/10.2172/10139458.

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Smith, Nicholas, Derek McLain, and Jennifer Steeb. Ion Mobility Spectrometer Field Test. Office of Scientific and Technical Information (OSTI), December 2017. http://dx.doi.org/10.2172/1418326.

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Knight, R. D., and B. A. Kjarsgaard. Comparative pXRF and Lab ICP-ES/MS methods for mineral resource assessment, Northwest Territories. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/331239.

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The Geological Survey of Canada undertook a mineral resource assessment for a proposed national park in northern Canada (~ 33,500 km2) spanning the transition from boreal forest to barren lands tundra. Bedrock geology of this region is complex and includes the Archean Slave Craton, the Archean and Paleoproterozoic Rae domain of the Churchill Province, the Paleoproterozoic Thelon and Taltson magmatic-tectonic zones, and the Paleoproterozoic East Arm sedimentary basin. The area has variable mineral potential for lode gold, kimberlite-hosted diamonds, VMS, vein uranium and copper, SEDEX, as well as other deposit types. A comparison of analytical methods was carried out after processing the field collected samples to acquire both the < 2 mm and for the < 0.063 mm size fractions for 241 surficial sediment (till) samples, collected using a 10 x 10 km grid. Analytical methods comprised: 1) aqua regia followed by ICP-MS analysis, 2) 4-acid hot dissolution followed by ICP-ES/MS analysis, 3) lithium metaborate/tetraborate fusion methods followed by ICP-ES for major elements and ICP-MS for trace elements and, 4) portable XRF on dried, non-sieved sediment samples subjected to a granular segregation processing technique (to produce a clay-silt proxy) for seventeen elements (Ba, Ca, Cr, Cu, Fe, K, Mn, Ni, Pb, Rb, Sr, Th, Ti, U, V, Zn, and Zr) Results indicate that pXRF data do not replicate exactly the laboratory 4-acid and fusion data (in terms of precision and accuracy), but the relationship between the datasets is systematic as displayed in x-y scattergrams. Interpolated single element plots indicate that till samples with anomalies of high and low pXRF concentration levels are synonymous with high and low laboratory-based analytical concentration levels, respectively. The pXRF interpolations thus illustrate the regional geochemical trends, and most importantly, the significant geochemical anomalies in the surficial samples. These results indicate that pXRF spectrometry for a subset of elements is comparable to traditional laboratory methods. pXRF spectrometry also provides the benefit of rapid analysis and data acquisition that has a direct influence on real time sampling designs. This information facilitates efficient and cost-effective field projects (i.e. where used to identify regions of interest for high density sampling), and to prioritize samples to be analyzed using traditional geochemical methods. These tactics should increase the efficiency and success of a mineral exploration and/or environmental sampling programs.
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Poellot, Michael. OLYMPEX Counterflow Spectrometer and Impactor Field Campaign Report. Office of Scientific and Technical Information (OSTI), July 2016. http://dx.doi.org/10.2172/1302196.

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Castro, Alonso. Atomic Beam Laser Spectrometer for In-field Isotopic Analysis. Office of Scientific and Technical Information (OSTI), June 2016. http://dx.doi.org/10.2172/1258346.

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David K. Wehe, Zong He, and Glenn K. Knoll. High Pressure XENON Gamma-Ray Spectrometers for Field Use. Office of Scientific and Technical Information (OSTI), February 2004. http://dx.doi.org/10.2172/821711.

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Horton, David, Victoria Soroker, Peter Landolt, and Anat Zada Byers. Characterization and Chemistry of Sexual Communication in Two Psyllid Pests of Pears (Homoptera: Psyllidae). United States Department of Agriculture, August 2011. http://dx.doi.org/10.32747/2011.7592653.bard.

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Pear-feeding psyllids in the genus Cacopsylla (Hemiptera: Psyllidae) are among the most important arthropod pests of pears worldwide. These pests are exceedingly difficult to control, and new management tools are needed. Sex attractantpheromones have been used in IPM programs for pests of pome fruits (especially Lepidoptera), but not as yet for pest Hemiptera. Results of the current project showed that males of two psyllid pests of pears, Cacopsylla bidens (Israel) and Cacopsylla pyricola (North America), use volatile or semi-volatile compounds to locate female psyllids for mating. For both species, the attractants can be collected from the cuticle of females by washing live female psyllids with an appropriate solvent. Analysis of these washes by gas chromatography – mass spectrometry led to the following discoveries: Psyllid cuticles contain a mix of hydrocarbons, straight chain and branched alkanes, and long chain aldehydes The two species have different chemical profiles Chemical profiles change seasonally and with reproductive status Chemical profiles differ between male and reproductive female psyllids Several specific compounds found to be more abundant in attractive females than males were identified and synthesized. Behavioral assays (olfactometer) were then used to determine whether these compounds were attractive to males. Two compounds showed promise as attractants for male psyllids: 7-methylheptacosane (C. bidens) and 13-methylheptacosane (C. pyricola and C. bidens). These are the first sex attractantpheromones identified for any psyllid species. Field tests showed that the chemicals could be used to attract males under orchard conditions, but that effectiveness in the field appeared to be seasonally variable. Future research plans include: (a) test mixtures of compounds; (b) explore seasonality in field response to compounds; (c) determine whether chirality of the two compounds affects their attractiveness; and (d) compare different types of traps and release devices to optimize lure performance.
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