Relevant bibliographies by topics / Spectrophotometric data

Academic literature on the topic 'Spectrophotometric data'

Author: Grafiati
Published: 10 December 2022
Last updated: 28 January 2023

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Journal articles on the topic "Spectrophotometric data"

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Morawski, Roman Z. "Measurement Data Processing in Spectrophotometric Analysers of Food." Metrology and Measurement Systems 19, no. 4 (December 1, 2012): 623–52. http://dx.doi.org/10.2478/v10178-012-0056-1.

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Abstract Spectrometry, especially spectrophotometry, is getting more and more often the method of choice not only in laboratory analysis of (bio)chemical substances, but also in the off-laboratory identification and testing of physical properties of various products, in particular - of various organic mixtures including food products and ingredients. Specialised spectrophotometers, called spectrophotometric analysers, are designed for such applications. This paper is on the state of the art in the domain of data processing in spectrophotometric analysers of food (including beverages). The following issues are covered: methodological background of food analysis, physical and metrological principles of spectrophotometry, the role of measurement data processing in spectrophotometry. General considerations are illustrated with examples, predominantly related to wine and olive oil analysis.
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Tucker, M. A., B. J. Shappee, M. E. Huber, A. V. Payne, A. Do, J. T. Hinkle, T. de Jaeger, et al. "The Spectroscopic Classification of Astronomical Transients (SCAT) Survey: Overview, Pipeline Description, Initial Results, and Future Plans." Publications of the Astronomical Society of the Pacific 134, no. 1042 (December 1, 2022): 124502. http://dx.doi.org/10.1088/1538-3873/aca719.

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Abstract We present the Spectroscopic Classification of Astronomical Transients (SCAT) survey, which is dedicated to spectrophotometric observations of transient objects such as supernovae and tidal disruption events. SCAT uses the SuperNova Integral-Field Spectrograph (SNIFS) on the University of Hawai’i 2.2 m (UH2.2m) telescope. SNIFS was designed specifically for accurate transient spectrophotometry, including absolute flux calibration and host-galaxy removal. We describe the data reduction and calibration pipeline including spectral extraction, telluric correction, atmospheric characterization, nightly photometricity, and spectrophotometric precision. We achieve ≲5% spectrophotometry across the full optical wavelength range (3500–9000 Å) under photometric conditions. The inclusion of photometry from the SNIFS multi-filter mosaic imager allows for decent spectrophotometric calibration (10%–20%) even under unfavorable weather/atmospheric conditions. SCAT obtained ≈640 spectra of transients over the first 3 yr of operations, including supernovae of all types, active galactic nuclei, cataclysmic variables, and rare transients such as superluminous supernovae and tidal disruption events. These observations will provide the community with benchmark spectrophotometry to constrain the next generation of hydrodynamic and radiative transfer models.
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Kabay, Nilgün, Ümmühan Ocak, Serhat Gün, and Yaşar Gök. "Synthesis of metal-free and zinc phthalocyanines containing 2-pyridyl-methyl pendant arm linked with NS4-donor macrocyclic moiety and their selectivity towards Cu(II) cations." Journal of Porphyrins and Phthalocyanines 17, no. 06n07 (June 2013): 480–88. http://dx.doi.org/10.1142/s1088424613500600.

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New phthalonitrile (L1), metal-free phthalocyanine (H2Pc) and zinc-phthalocyanine (ZnPc) substituted in peripheral positions with 2-pyridyl methyl pendant arm linked mixed donor macrocyclic ligands have been prepared in a multi-step reaction sequence. The novel compounds were characterized by a combination of elemental anlaysis, 1 H NMR, 13 C NMR, IR, UV-vis and MS spectral data. The influence of metal cations such as Cd 2+, Zn 2+, Hg 2+, Al 3+, Fe 3+ and Cu 2+ on the spectroscopic properties of dinitrile compound L1 and free phthalocyanine H2Pc was investigated by means of absorption spectrophotometry. Spectrophotometric titrations were carried out with these ligands for Cu 2+ ion. The complex composition of Cu - L1 was found 1:1 by means of spectrophotometric titration data. The spectrophotometric method showed good sensitivity for Cu 2+ with linear range of 2.6 × 10-6 to 1.3 × 10-4 M with dinitrile compound.
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Dworkowski, Florian S. N., Michael A. Hough, Guillaume Pompidor, and Martin R. Fuchs. "Challenges and solutions for the analysis ofin situ,in crystallomicro-spectrophotometric data." Acta Crystallographica Section D Biological Crystallography 71, no. 1 (January 1, 2015): 27–35. http://dx.doi.org/10.1107/s1399004714015107.

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Combining macromolecular crystallography within crystallomicro-spectrophotometry yields valuable complementary information on the sample, including the redox states of metal cofactors, the identification of bound ligands and the onset and strength of undesired photochemistry, also known as radiation damage. However, the analysis and processing of the resulting data differs significantly from the approaches used for solution spectrophotometric data. The varying size and shape of the sample, together with the suboptimal sample environment, the lack of proper reference signals and the general influence of the X-ray beam on the sample have to be considered and carefully corrected for. In the present article, how to characterize and treat these sample-dependent artefacts in a reproducible manner is discussed and theSLS-APEin situ,in crystallooptical spectroscopy data-analysis toolbox is demonstrated.
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Lei, Yan Hong. "Spectrophotometric Method for the Assay of Aspirin." Applied Mechanics and Materials 602-605 (August 2014): 2097–100. http://dx.doi.org/10.4028/www.scientific.net/amm.602-605.2097.

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A selective method was developed for the determination of aspirin by Spectrophotometric method .The spectra (range: λ=200~320 nm) were processed. The linear ranges of aspirin was at 50.28 ~ 125.7μg • mL-1 .the aspirin showed good linear correlation.The ultraviolet spectrophotometry data of the samples were also used to evaluate the samples’ quantitative composition.It was shown that recovery of the method by standard addition method was respectively valued 102.06% for aspirin .The method was simple,reliable,accurate,reproducible with high sensitivity and selectivity.
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Michel, Erik, Andreas Entenmann, and Miriam Michel. "Pulse Spectrophotometric Determination of Plasma Bilirubin in Newborns." International Journal of Biomedical and Clinical Engineering 5, no. 1 (January 2016): 21–30. http://dx.doi.org/10.4018/ijbce.2016010103.

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In neonatal jaundice, plasma bilirubin has to be measured repeatedly in order to direct phototherapy. Invasive determination is standard. The authors delineate a concept for the non-invasive spectrophotometric determination of absolute plasma bilirubin concentration. By referencing the pulsatile spectrophotometric signal component of the metabolite of interest (MOI, here: bilirubin) to the pulsatile spectrophotometric signal component of a reference metabolite (MOR, here: water) of known plasma concentration, the absolute MOI concentration can be calculated. Based on Beer-Lambert's law and some reasonable assumptions, the authors developed a theoretical concept for the calculation of MOI concentration. They suggest light of 1200 nm wavelength to measure MOR, 795 nm and 570 nm to measure hemoglobin as correction signal, and 450 nm to measure the MOI. To enhance data quality one could assign several wavelengths to each metabolite. Since in tissue spectrophotometry Beer-Lambert's law does not reflect physiology accurately, it will be necessary to empirically fine-tune the computer algorithms.
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Lepot, Mathieu, Jean-Baptiste Aubin, François H. L. R. Clemens, and Alma Mašić. "Outlier detection in UV/Vis spectrophotometric data." Urban Water Journal 14, no. 9 (February 8, 2017): 908–21. http://dx.doi.org/10.1080/1573062x.2017.1280515.

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Benoudjit, N., F. Melgani, and H. Bouzgou. "Multiple regression systems for spectrophotometric data analysis." Chemometrics and Intelligent Laboratory Systems 95, no. 2 (February 2009): 144–49. http://dx.doi.org/10.1016/j.chemolab.2008.10.001.

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Karacan, Elif, Mehmet Gokhan Çaġlayan, İsmail Murat Palabiyik, and Feyyaz Onur. "Liquid Chromatographic and Spectrophotometric Determination of Diflucortolone Valerate and Isoconazole Nitrate in Creams." Journal of AOAC INTERNATIONAL 94, no. 1 (January 1, 2011): 128–35. http://dx.doi.org/10.1093/jaoac/94.1.128.

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Abstract A new RP-LC method and two new spectrophotometric methods, principal component regression (PCR) and first derivative spectrophotometry, are proposed for simultaneous determination of diflucortolone valerate (DIF) and isoconazole nitrate (ISO) in cream formulations. An isocratic system consisting of an ACE® C18 column and a mobile phase composed of methanol–water (95+5, v/v) was used for the optimal chromatographic separation. In PCR, the concentration data matrix was prepared by using synthetic mixtures containing these drugs in methanol–water (3+1, v/v). The absorbance data matrix corresponding to the concentration data matrix was obtained by measuring the absorbances at 29 wavelengths in the range of 242–298 nm for DIF and ISO in the zero-order spectra of their combinations. In first derivative spectrophotometry, dA/dλ values were measured at 247.8 nm for DIF and at 240.2 nm for ISO in first derivative spectra of the solution of DIF and ISO in methanol–water (3+1, v/v). The linear ranges were 4.00–48.0 μg/mL for DIF and 50.0–400 μg/mL for ISO in the LC method, and 2.40–40.0 μg/mL for DIF and 60.0–260 μg/mL for ISO in the PCR and first derivative spectrophotometric methods. These methods were validated by analyzing synthetic mixtures. These three methods were successfully applied to two pharmaceutical cream preparations.
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Tarasov, A. P., and D. A. Rogatkin. "Universality of the Top-Level Software Structure for Noninvasive Spectrophotometric Diagnostic Devices." Herald of the Bauman Moscow State Technical University. Series Instrument Engineering, no. 2 (125) (April 2019): 104–15. http://dx.doi.org/10.18698/0236-3933-2019-2-104-115.

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The paper justifies the possibility of creating software with a universal top-level structure using LabVIEW for noninvasive spectrophotometric diagnostic devices. To attain these ends it is proposed to use a modular structure of the program where specialized modules directly associated with measurements and processing measurement data work independently of common modules designed for working with service textual information and databases, and having no strong differences for different noninvasive medical spectrophotometry methods
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Dissertations / Theses on the topic "Spectrophotometric data"

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Burnett, Benedict. "Stellar parameter estimation from spectrophotometric data." Thesis, University of Oxford, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.526545.

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Río, Sánchez Vanessa del. "Fast analytical methodologies based on molecular spectrophotometric techniques and multivariate data analysis." Doctoral thesis, Universitat Rovira i Virgili, 2010. http://hdl.handle.net/10803/9056.

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El objetivo principal de esta tesis es el desarrollo de metodologías analíticas rápidas basadas en técnicas espectrofotométricas moleculares y análisis de datos multivariantes. Estas metodologías se han aplicado para la resolución de dos problemas analíticos relacionados con los aceites vegetales como materias primas.
Uno de ellos es la evaluación de las posibilidades que ofrecen los aceites vegetales como precursores de pre-polímeros. Se ha demostrado que la espectroscopía de infrarrojo combinada con tratamiento de datos de segundo orden es una herramienta útil para llevar a cabo el análisis cuantitativo de reacciones poliméricas modelo en las cuales intervienen aceites vegetales como reactivos iniciales.
El segundo es el control de calidad del biodiesel. Se han desarrollado dos métodos basados en análisis por inyección secuencial con detección UV-visible y tratamiento de datos de segundo orden para llevar a cabo la determinación de parámetros de interés para la caracterización del fuel.
L'objectiu principal d'aquesta tesi és el desenvolupament de metodologies analítiques ràpides basades en tècniques espectrofotomètriques moleculars i anàlisi de dades multivariants. Aquestes metodologies s'han aplicat a la resolució de dos problemes analítics relacionats amb els olis vegetals com a matèries primes.
Un d'ells és l'avaluació de les possibilitats que ofereixen aquests olis com a precursors de pre-polímers. S'ha demostrat que la espectroscopia d'infraroig combinada amb el tractament de dades de segon ordre és una eina útil per dur a terme l'anàlisi quantitatiu de reaccions polimèriques model en les quals intervenen olis vegetals com a reactius inicials.
El segon és el control de qualitat del biodiesel. S'han desenvolupat dos mètodes basats en l'anàlisi per injecció seqüencial amb detecció UV-visible i tractament de dades de segon ordre per dur a terme la determinació de paràmetres d'interès per a la caracterització del fuel.
The main objective of this thesis is the development of fast analytical methodologies based on molecular spectrophotometric techniques and multivariate data analysis. These methodologies have been applied to the resolution of two analytical problems related to the vegetable oils as raw materials.
One of them is the evaluation of the possibilities that modified vegetable oils offer as precursors of pre-polymers. It has been demonstrated that infrared spectroscopy combined with second-order data treatment is a powerful tool to carry out the quantitative analysis of model polymer reactions of interest to obtain vegetable oil-thermosetting materials.
The other one is the quality control of biodiesel. Two methods based on sequential injection analysis with UV-visible detection and second-order data treatment have been developed to determine the specific parameters of interest for the characterization of the fuel.
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Da, Silva Pereira Rui. "Nearby Supernovae Factory : Calibration of SNIFS data and spectrophotometric Type la supernovae light curves." Paris 7, 2008. http://www.theses.fr/2008PA077167.

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Les supernovae de type la (SNe la) sont un des piliers de la cosmologie observationnelle moderne, celles-ci étant de bonnes chandelles standards utilisables pour des mesures de distances dans l'univers. L'analyse cosmologique à partir des SNe la s'appuie sur les mesures d'objets à grands et petits décalages vers le rouge (z), et actuellement le faible nombre d'observations de ces derniers constitue une source majeure d'incertitude. Cette thèse s'inscrit dans le cadre de l'expérience SNfactory, qui a pour objectif l'observation de SNe la proches (0. 03 < z < 0. 08) grâce à un spectrographe de champ intégral, SNIFS. Le travail présenté a porté d'une part sur l'étalonnage de la voie photométrique de SNIFS, et d'autre part sur l'analyse des courbes de lumière spectrophotométriques issues des données de SNIFS. Ces études ont abouties à la création du premier diagramme d'Hubble spectrophotométrique pour des SNe la proches. Une chaîne d'extraction de rapports photométriques entre nuits, nécessaires pour l'étalonnage en flux des spectres, a été mise en oeuvre. Les erreurs systématiques de ces rapports ont été estimées comme étant inférieures à 2%, et les courbes de lumière spectrophotométriques d'étoiles standards montrent une précision de 5% pour l'étalonnage absolu en flux dans des conditions non-photométriques. Les résidus du diagramme d'Hubble obtenu présentent une dispersion plus petite que celui fait avec les données disponibles à ce jour. Un ajustement cosmologique sans K-correction montre une réduction supplémentaire de 5%, qui jusqu'à présent était indistinguable de la "dispersion intrinsèque" des SNe la
Type la supernovae (SNe la) are one of the pillars of modem observational cosmology, since they are good standard candies for distance measurements in the universe. The cosmological analysis using SNe la requires the observation of both high and low-redshift objects, and the smaller statistic of events on the latter case represents a major source of uncertainties. This thesis takes place within the SNfactory project, which aims to study nearby (0. 03 < z < 0. 08) SNe la using an integral field spectrograph, SNIFS. The presented work is divided into: a technical part, dealing with the acquisition, calibration and extraction of data from the SNIFS photometric camera; and an analysis where spectrophotometric light curves issued frc-m SNIFS spectra were obtained, and used to create the first spectrophotometric nearby Hubble diagram. An extraction pipeline of the differential photometric ratios between nights, needed for the flux calibration of the spectra, was built. The systematic errors affecting these ratios are estimated to be below 2%, and spectrophotometric light curves of standard stars show a 5% photometric precision of the full flux calibration on non-photometric conditions. The obtained nearby Hubble diagram presents a smaller residual scatter than the one made using currently available data. A K-correction free cosmological fit shows an additional reduction of 5% on the scatter, until now undistinguishable from the SNe la "intrinsic dispersion"
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Narayan, G., T. Axelrod, J. B. Holberg, T. Matheson, A. Saha, E. Olszewski, J. Claver, et al. "TOWARD A NETWORK OF FAINT DA WHITE DWARFS AS HIGH-PRECISION SPECTROPHOTOMETRIC STANDARDS." IOP PUBLISHING LTD, 2016. http://hdl.handle.net/10150/621236.

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We present the initial results from a program aimed at establishing a network of hot DA white dwarfs to serve as spectrophotometric standards for present and future wide-field surveys. These stars span the equatorial zone and are faint enough to be conveniently observed throughout the year with large-aperture telescopes. The spectra of these white dwarfs are analyzed in order to generate a non-local-thermodynamic-equilibrium model atmosphere normalized to Hubble Space Telescope colors, including adjustments for wavelength-dependent interstellar extinction. Once established, this standard star network will serve ground-based observatories in both hemispheres as well as space-based instrumentation from the UV to the near IR. We demonstrate the effectiveness of this concept and show how two different approaches to the problem using somewhat different assumptions produce equivalent results. We discuss the lessons learned and the resulting corrective actions applied to our program.
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D'Antonio, Tracy A. "Esthetic blending: visual vs. spectrophotometric data analysis for different bevels in class IV dental composite direct restorations." Thesis, University of Iowa, 2017. https://ir.uiowa.edu/etd/5450.

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The purpose of this study was to determine which type of bevel in a class IV dental composite restoration is the most esthetic and has the best blend to natural tooth structure via clinical and spectrophotometric evaluations. The null hypotheses were as follows: (1) there is no difference in visual evaluation rank scores among five groups of evaluators for each type of bevel; (2) there is no agreement in the visual evaluation rank scores of the seven groups of bevels among all evaluators or within each group of evaluators; (3) there is no difference in the lightness values among seven types of bevels at each of eight measurement points or for the whole tooth as measured by a spectrophotometer; and (4) there is no correlation between the visual evaluation and the spectrophotometric evaluation. The class IV samples were made via CAD/CAM milling for standardization. There were seven groups: negative control (no bevel); short (1mm) and straight bevel; short (1mm) and scalloped bevel; long (2mm) and straight bevel; long (2mm) and scalloped bevel; infinite (3+mm) and straight bevel; and infinite (3+mm) and scalloped bevel. The fractures were restored with the same type of dental composite via a digitally designed mold fabricated with a 3D printer. Once completed, the samples were randomized and evaluated visually by 91 people in five groups (faculty, graduate residents, pre-doctoral dental students, assistants/hygienists, and auxiliary staff). Evaluators placed the samples in the order they deemed least to most esthetic within a lightbox set to CIE Standard Illumination D65. After the visual evaluation, the lightness (L*) values were measured optically with a reflectance spectrophotometer at eight points on each of the seven bevel groups, as well as on an un-prepared typodont tooth used for reference. One-way ANOVA on ranked data with the post-hoc Bonferroni test was conducted to detect a significant difference in median rating score among five groups of evaluators, and Kendall’s W was used to evaluate an agreement among multiple raters. One-way ANOVA with the post-hoc Tukey’s HSD was used to find a significant difference in mean lightness values among seven types of bevels. Dunnett’s test was used to compare the reference group with each of the seven bevel groups when evaluating the lightness values. Pearson Correlation test along with the simple linear regression analysis were used to determine whether a significant relationship existed between visual evaluation scores and lightness values. The groups were ranked from least to most esthetic as follows: no bevel, short and straight bevel, short and scalloped bevel, long and straight bevel, long and scalloped bevel, infinite and straight bevel, and infinite and scalloped bevel by the 91 evaluators and Kendall’s W was 0.80 (strong agreement). Moreover, no significant difference in rating scores was found among the five groups of evaluators regarding each type of bevel (p>0.05). The overall mean lightness values observed in groups 1-3 were significantly higher than those in groups 6 and 7 (P< 0.05), but no significant difference was noted among groups 1-5 or among groups 4-7. As the lightness values measured by the spectrophotometer decreased, the overall visual evaluation score increased. The Pearson Correlation Coefficient of -0.89 indicated there was a strong negative correlation between the two variables (p=0.0066). Linear regression analysis revealed that the predictor of lightness was significant (strong negative correlation, R-square 0.99, p< 0.0001). The first null hypothesis was accepted and the second, third, and fourth were rejected. There was no difference in median visual evaluation rank scores among five groups of evaluators for each type of bevel, however, there was agreement in the ranked order as the findings of this study indicated that infinite and scalloped bevel was the most preferred and no bevel was the least preferred via a strong agreement the evaluators. There was a significant difference in lightness values among the seven bevel groups; the shorter bevels had higher L* values that were closer to the L* values of the reference tooth while the longer bevels had lower L* values. The correlation data showed that placing a longer bevel (3+mm) allowed for a more gradual transition and better blending capabilities between the tooth structure and dental composite. The overall conclusion from this study was the longer the bevel, the more gradual the change in Lightness (L*), which correlated to the more esthetic restoration, as determined by the evaluators.
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Dowds, Eileen. "Automated Data Acquisition for Analysis of Fly Ash by Graphite Furnace Atomic Absorption Spectrophotometry." W&M ScholarWorks, 1989. https://scholarworks.wm.edu/etd/1539625520.

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Burger, James. "Hyperspectral NIR image analysis : data exploration, correction, and regression /." Umeå : Unit of Biomass Technology and Chemistry, Swedish University of Agricultural Sciences, 2006. http://epsilon.slu.se/200660.pdf.

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Ansell, Seth. "A study of ellipsoidal variance as a function of mean CIELAB values in a textile data set /." Online version of thesis, 1995. http://hdl.handle.net/1850/12232.

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Azevedo, Luiz Otavio Roffee. "Infra-Red Spectrophotometry and X-Ray Diffractometry as Tools in the Study of Nickel Laterites." Thesis, The University of Arizona, 1985. http://hdl.handle.net/10150/231213.

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Nickel silicate laterite deposits developed on ultra-mafic rocks are similar in many general respects but they vary considerably in detail. The mineralogy of these surficial deposits is very complex and difficult to determine because of the fine grained nature and solid solution characteristics of the hydrous secondary minerals and because many of the phases are actually mineraloids that are poorly ordered or amorphous. To try some new approaches toward clarification of these phases, 24 samples from New Caledonia and Puerto Rico ranging from the ophiolite-ultramafic olivine-pyroxene-chromite-serpentine substrate rocks upward through intermediate phases of weathering to the final oxide -hydroxide iron cap phase were analyzed with the infrared spectrophotometer (IR -10) and with the automated X –ray diffractometer. Four limonite samples were also mineralogically analyzed. Goethite, secondary quartz, cryptomelane, hematite, chromite, talc, thuringite, and garnierite have been identified in various samples as weathering profile products.
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Wetterlind, Johanna. "Improved farm soil mapping using near infrared reflection spectroscopy." Uppsala : Dept. of Soil and Environment, Swedish University of Agricultural Sciences, 2009. http://epsilon.slu.se/200968.pdf.

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Books on the topic "Spectrophotometric data"

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Meloun, M. Computation of solution equilibria: A guide to methods in potentiometry, extraction, and spectrophotometry. Edited by Havel J and Högfeldt Erik 1924-. Chichester, England: E. Horwood, 1988.

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1933-, Tebby John C., ed. CRC handbook of phosphorus-31 nuclear magnetic resonance data. Boca Raton: CRC Press, 1991.

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Tebby, John C. Handbook of Phosphorus-31 Nuclear Magnetic Resonance Data. CRC Press, 1990.

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Book chapters on the topic "Spectrophotometric data"

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Labhardt, Lukas, and Roland Buser. "Calibration of Photometric Systems from Homogeneous Spectrophotometric Data." In Calibration of Fundamental Stellar Quantities, 519–21. Dordrecht: Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-5456-4_63.

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Malyuto, Valeri, Jaan Pelt, and Teimuraz Shvelidze. "An Automatic Spectrophotometric Data Reduction System for Quantitative Spectral Classification of Stars." In Data Analysis in Astronomy IV, 65–71. Boston, MA: Springer US, 1992. http://dx.doi.org/10.1007/978-1-4615-3388-7_8.

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Kulikov, Kirill, and Tatiana Koshlan. "Determination of the Optical Parameters on the Basis of Spectrophotometric Data." In Laser Interaction with Heterogeneous Biological Tissue, 179–86. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-94114-1_12.

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Peña, M., W. R. Hamann, L. Koesterke, J. Maza, R. H. Méndez, M. Peimbert, M. T. Ruiz, and S. Torres-Peimbert. "HST Spectrophotometric Data of the Central Star of the Planetary Nebula LMC-N66." In Planetary Nebulae, 126–27. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-011-5244-0_46.

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Bertolini, S., M. Giacomini, I. Martini, J. McDermott, and O. E. Varnier. "A WEB Tool for Analysis of Spectrophotometric Data for the Treatment of Patients with HIV." In IFMBE Proceedings, 184–87. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-03904-1_52.

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Kodama, T. S., Y. Kyogoku, and H. Sugeta. "A Novel Method for Estimating Thermodynamic Parameters in Multi-Equilibrium Systems by Global Analysis of Spectrophotometric Data." In Spectroscopy of Biological Molecules: Modern Trends, 577–78. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-011-5622-6_263.

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Nečas, David. "Data Processing Methods for Imaging Spectrophotometry." In Optical Characterization of Thin Solid Films, 143–75. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-75325-6_6.

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Carrillo-Cedillo, Eugenia Gabriela, Maria del Pilar Haro-Vazquez, Nataly Gómez-Carrillo, Ruben Guillermo Sepulveda Marques, and Mónica Graciela Coronel. "Multi-Wavelength Spectrophotometric Analysis." In Advances in Medical Technologies and Clinical Practice, 99–121. IGI Global, 2022. http://dx.doi.org/10.4018/978-1-7998-9613-5.ch006.

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On the basis of the absorbance activity law, it is possible to carry out the spectrophotometric determination of two individual components (having totally or partially overlapping spectra) in a binary mixture. This determination can be carried out in a very precise and simple way by introducing ourselves in the multicomponent analysis by means of the so-called multi-wavelength linear regression analysis (MLRA) method that allows easy handling of data obtained at different wavelengths and whose results are comparable in accuracy and precision with other mathematical procedures. Another way of being able to calculate the individual concentration of two components is a mixture when their spectra are totally or partially overlapping; it is the derived spectrophotometry. The objective of this work is to apply the MLRA method for the individual determination of a binary mixture of metformin and sitagliptin as well as to apply derived spectrophotometry.
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"Evaluation of the Analyte Concentration from Spectrophotometric Data." In Studies in Analytical Chemistry, 95–119. Elsevier, 1989. http://dx.doi.org/10.1016/b978-0-444-98882-9.50008-6.

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Szabadai, Zoltan, Viceniu Vlaia, Ioan ranu, Bogdan-Ovidiu ranu, Lavinia Vlaia, and Iuliana Pop. "Multivariate Data Processing in Spectrophotometric Analysis of Complex Chemical Systems." In Macro To Nano Spectroscopy. InTech, 2012. http://dx.doi.org/10.5772/38765.

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Conference papers on the topic "Spectrophotometric data"

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Yaroslavsky, Ilya V., and Valery V. Tuchin. "Inverse Monte Carlo method for spectrophotometric data processing." In Volga Laser Tour '93, edited by Valery V. Tuchin. SPIE, 1994. http://dx.doi.org/10.1117/12.179027.

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Sancho-Parramon, Jordi, Salvador Bosch, Josep Ferre-Borrull, Stefan Guenster, and Detlev Ristau. "Use of online spectrophotometric data for the characterisation of VUV coatings." In Optical Systems Design, edited by Claude Amra, Norbert Kaiser, and H. Angus Macleod. SPIE, 2004. http://dx.doi.org/10.1117/12.514418.

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Anastasiia, Herus. "Thermodynamic analysis of ligand - DNA complex formation from the spectrophotometric data." In 2015 International Young Scientists Forum on Applied Physics (YSF). IEEE, 2015. http://dx.doi.org/10.1109/ysf.2015.7333127.

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Lamareille, F. "Spectrophotometric properties of galaxies: automatic measurement and analysis tools for large surveys." In THE SPECTRAL ENERGY DISTRIBUTIONS OF GAS-RICH GALAXIES: Confronting Models with Data; International Workshop. AIP, 2005. http://dx.doi.org/10.1063/1.1913958.

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Tikhonravov, Alexander V., Michael K. Trubetskov, and Gary W. DeBell. "On the accuracy of optical thin film parameter determination based on spectrophotometric data." In Optical Science and Technology, SPIE's 48th Annual Meeting, edited by Angela Duparre and Bhanwar Singh. SPIE, 2003. http://dx.doi.org/10.1117/12.505499.

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Leonets, A. D., and D. A. Grinko. "Design of optical thin film structures for information recording based on spectrophotometric data." In International Conference on Optical Storage, edited by Viacheslav V. Petrov and Sergei V. Svechnikov. SPIE, 1997. http://dx.doi.org/10.1117/12.267709.

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Postnikov, Eugene B., Anastasia I. Lavrova, Andrey A. Khalin, Marine Z. Dogonadze, and Olga A. Manicheva. "Spectrophotometric vs. colorimetric analysis of mycobacterium tuberculosis population growth curves in resazurin assay." In Saratov Fall Meeting 2018: Computations and Data Analysis: from Nanoscale Tools to Brain Functions, edited by Dmitry E. Postnov. SPIE, 2019. http://dx.doi.org/10.1117/12.2523300.

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Filippo, Roberto, Pier Paolo Capra, Manuel Lai, and Maria Giulia Faga. "Microstructural and spectrophotometric analysis system for metal welding processes." In 19th International Congress of Metrology (CIM2019), edited by Sandrine Gazal. Les Ulis, France: EDP Sciences, 2019. http://dx.doi.org/10.1051/metrology/201913003.

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Abstract:
We describe an analysis system for some of the most important methods of metal welding, based on the acquisition, study and comparison of the atomic emission spectra (in the range from 250 nm to 830 nm), hyperspectral imaging between 600 nm and 950 nm wavelengths and microstructural analysis. The radiometric measurement system acquires information while the welding process is in progress and acquired data are then compared with those resulting from the subsequent microstructural analysis. It is known that the process parameters like, for example, the source power or its speed over the parts during welding, significantly affect the mechanical properties and quality of the resulting junction like hardness, porosity, presence of cracks or other damages and so on. On the other hand, these properties and, above all, the changes in the joint features due to unwanted variations in the process parameters or in the materials being welded, can be inferred by studying the microstructure. In this sense, a proper correlation between the in situ spectral analysis and the microstructural properties is of paramount importance for controlling and adjusting the parameters during the process. In line with the requirements of Industry 4.0, the system described is a study of the application of metrology in a production line, designed to increase information about the production parameters of mechanical industry without increasing costs and limiting the complexity of additional installations. In this paper we report a series of experiments performed using LASER and TIG welding systems applied to different metals. The comparison between the welding conditions acquired by the optical systems and the methods of structural analysis are the basis of a project to improve production systems and their automation.
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Makeev, A. P., O. E. Bazhenov, V. D. Burlakov, M. V. Grishaev, Yu V. Gridnev, S. I. Dolgii, A. V. Nevzorov, and N. S. Salnikova. "Comparison of remote spectrophotometric and lidar measurements of O3, NO2, and temperature with data of satellite measurements." In 20th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, edited by Oleg A. Romanovskii. SPIE, 2014. http://dx.doi.org/10.1117/12.2075502.

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Lipert, Robert J., April Hazen-Bosveld, Marc D. Porter, and Daniel B. Gazda. "Spectrophotometric Color Matching: A Straightforward Alternative to Kubelka-Munk Analysis of Reflectance Data for Readout of Water Quality Monitoring Disks." In International Conference On Environmental Systems. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2005. http://dx.doi.org/10.4271/2005-01-3064.

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Reports on the topic "Spectrophotometric data"

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Maps and tables showing data and analyses of semiquantitative emmission spectrometry and atomic-absorption spectrophotometry of rock samples, Ugashik, Bristol Bay, and part of Karluk quadrangles, Alaska. US Geological Survey, 1986. http://dx.doi.org/10.3133/mf1539c.

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