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Bibliografias temáticas / ICP-MS coupling

Literatura científica selecionada sobre o tema "ICP-MS coupling"

Autor: Grafiati

Publicado: 13 de julho de 2024

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Artigos de revistas sobre o assunto "ICP-MS coupling"

1

Holdship, Phil, Pierre Bonnand, David Price e Paul Watson. "Micro flow injection ICP-MS analysis of high matrix samples: an investigation of its capability to measure trace elements in iron meteorites". Journal of Analytical Atomic Spectrometry 33, n.º 11 (2018): 1941–53. http://dx.doi.org/10.1039/c8ja00162f.

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The coupling of a micro-flow injection sample introduction system to a highly versatile quadrupole ICP-MS (FI-ICP-MS) has been demonstrated to achieve accurate and precise trace element measurements for several iron meteorites.

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Michalke, B., e P. Schramel. "The coupling of capillary electrophoresis to ICP-MS". Analusis 26, n.º 6 (julho de 1998): 51–56. http://dx.doi.org/10.1051/analusis:199826060051.

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Seubert, Andreas. "On-line coupling of ion chromatography with ICP–AES and ICP–MS". TrAC Trends in Analytical Chemistry 20, n.º 6-7 (junho de 2001): 274–87. http://dx.doi.org/10.1016/s0165-9936(01)00082-6.

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Michalke, B., e P. Schramel. "The coupling of capillary electrophore-sis to ICP-MS". Analusis 26, n.º 6 (julho de 1998): M51—M56. http://dx.doi.org/10.1051/analusis:1998147.

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5

Soto-Alvaredo, Juan, Florian Dutschke, Jörg Bettmer, María Montes-Bayón, Daniel Pröfrock e Andreas Prange. "Initial results on the coupling of sedimentation field-flow fractionation (SdFFF) to inductively coupled plasma-tandem mass spectrometry (ICP-MS/MS) for the detection and characterization of TiO2 nanoparticles". Journal of Analytical Atomic Spectrometry 31, n.º 7 (2016): 1549–55. http://dx.doi.org/10.1039/c6ja00079g.

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6

Procópio, Vitória Aparecida, Rodrigo Mendes Pereira, Camila Neves Lange, Bruna Moreira Freire e Bruno Lemos Batista. "Chromium Speciation by HPLC-DAD/ICP-MS: Simultaneous Hyphenation of Analytical Techniques for Studies of Biomolecules". International Journal of Environmental Research and Public Health 20, n.º 6 (10 de março de 2023): 4912. http://dx.doi.org/10.3390/ijerph20064912.

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The first element legislated adopting chemical speciation was chromium (Cr) for differentiation between the highly toxic Cr(VI) from the micronutrient Cr(III). Therefore, this work aimed to develop a new analytical method through the coupling of High-Performance Liquid Chromatography with Diode-Array Detection (HPLC-DAD) with inductively coupled plasma mass spectrometry (ICP-MS) to obtain molecular and elemental information simultaneously from a single sample injection. In the first step, a low-cost flow split made of acrylic was developed aiming at optimally directing the sample to the detectors, enabling the HPLC-DAD/ICP-MS coupling. After the extraction of Certified Reference Materials (CRM of natural water NIST1640a and sugar cane leaf agro FC_012017), the recoveries determined by ICP-MS were 99.7% and 85.4%, respectively. Then, the method of HPLC-DAD/ICP-MS was applied for real samples of the CRMs. The presence of possible biomolecules associated with Cr(III) and Cr(VI) species was evaluated, with the simultaneous response detection of molecular (DAD) and elementary (ICP-MS) detectors. Potential biomolecules were observed during the monitoring of Cr(VI) and Cr(III) in sugar cane leaves, water samples and a supplement of Cr picolinate. Finally, the article also discusses the potential of the technique applied to biomolecules containing other associated elements and the need of more bioanalytical methods to understand the presence of trace elements in biomolecules.

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Faßbender, Sebastian, Marcus von der Au, Maren Koenig, Jürgen Pelzer, Christian Piechotta, Jochen Vogl e Björn Meermann. "Species-specific isotope dilution analysis of monomethylmercury in sediment using GC/ICP-ToF-MS and comparison with ICP-Q-MS and ICP-SF-MS". Analytical and Bioanalytical Chemistry 413, n.º 21 (23 de julho de 2021): 5279–89. http://dx.doi.org/10.1007/s00216-021-03497-z.

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AbstractA recently introduced inductively coupled plasma-time-of-flight-mass spectrometer (ICP-ToF-MS) shows enhanced sensitivity compared to previous developments and superior isotope ratio precision compared to other ToF and commonly used single-collector ICP-MS instruments. Following this fact, an improvement for isotope dilution ICP-MS using the new instrumentation has been reported. This study aimed at investigating whether this improvement also meets the requirements of species-specific isotope dilution using GC/ICP-MS, where short transient signals are recorded. The results of the analysis of monomethylmercury (MMHg) of a sediment reference material show that isotope ratio precision of ICP-MS instruments equipped with quadrupole, sector-field, and time-of-flight mass analyzers is similar within a broad range of peak signal-to-noise ratio when analyzing one isotopic system. The procedural limit of quantification (LOQ) for MMHg, expressed as mass fraction of Hg being present as MMHg, w(Hg)MMHg, was similar as well for all investigated instruments and ranged between 0.003 and 0.016 μg/kg. Due to the simultaneous detection capability, the ICP-ToF-MS might, however, be more favorable when several isotopic systems are analyzed within one measurement. In a case study, the GC/ICP-ToF-MS coupling was applied for analysis of MMHg in sediments of Finow Canal, a historic German canal heavily polluted with mercury. Mass fractions between 0.180 and 41 μg/kg (w(Hg)MMHg) for MMHg, and 0.056 and 126 mg/kg (w(Hg)total) for total mercury were found in sediment samples taken from the canal upstream and downstream of a former chemical plant. Graphical abstract

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Cheng, Heyong, Pu Li, Jinhua Liu e Zigang Xu. "Interfacing monolith-based electrochromatography in microchips with inductively coupled plasma mass spectrometry for elemental speciation". Journal of Analytical Atomic Spectrometry 31, n.º 9 (2016): 1869–76. http://dx.doi.org/10.1039/c6ja00112b.

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Baghdadi, S., G. Cote, C. Beyaert, B. Mane, A. Peroux, L. Masclet, F. Rebiere, M. Agarande e C. Bouvier-Capely. "Coupling between a calix[6]arene-based chromatography column and ICP-MS for on-line actinide analysis". Journal of Analytical Atomic Spectrometry 31, n.º 7 (2016): 1406–13. http://dx.doi.org/10.1039/c6ja00063k.

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Helfrich, Andreas, Wolfram Brüchert e Jörg Bettmer. "Size characterisation of Au nanoparticles by ICP-MS coupling techniques". Journal of Analytical Atomic Spectrometry 21, n.º 4 (2006): 431. http://dx.doi.org/10.1039/b511705d.

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Mais fontes

Teses / dissertações sobre o assunto "ICP-MS coupling"

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Mozhayeva, Darya [Verfasser]. "Single particle ICP-MS : capabilities of microsecond time resolution and coupling to capillary electrophoresis / Darya Mozhayeva". Siegen : Universitätsbibliothek der Universität Siegen, 2019. http://d-nb.info/1193252180/34.

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KANNAMKUMARATH, SASI S. "TRACE ELEMENTAL SPECIATION USING CHROMATOGRAPHY/CAPILLARY ELECTROPHORESIS COUPLED TO INDUCTIVELY COUPLED PLASMA MASS SPECTROMETRY FOR FOOD, PHARMACEUTICAL AND ENVIRONMENTAL ANALYSIS". University of Cincinnati / OhioLINK, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1085673299.

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Baghdadi, Sarah. "Analyse des actinides dans les urines en situation de crise par couplage entre les colonnes calix[6]arènes et un spectromètre de masse à plasma induit". Thesis, Paris 11, 2015. http://www.theses.fr/2015PA112081/document.

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En cas de crise nucléaire impliquant des actinides, il est nécessaire de disposer de méthodes d’analyses rapides afin d’identifier les personnes contaminées. Elles sont réalisées dans les excreta (urines et selles). Les méthodes usuelles d’analyse de ces émetteurs alpha sont performantes, mais elles sont longues et difficiles à mettre en œuvre et, de fait inadaptées à une situation de crise. Ce travail de thèse a donc consisté à développer une méthode d’analyse rapide des actinides dans l’urine par couplage entre une colonne à base de dérivés de calix[6]arène hydroxamique imprégné et un spectromètre de masse couplé à un plasma induit (ICP-MS). L’étude de la spéciation des actinides dans l’urine minéralisée a permis de mieux comprendre les réactions mises en jeu et de maîtriser leur extraction sur la colonne calix[6] arène. Un protocole a pu être élaboré, aboutissant à l’extraction simultanée des trois actinides à pH ≈ 5 puis à leur co-élution avec H3PO4 à 0,25 mol.L-1 avec des rendements de récupération moyens de 56 %, 74 % et 85 % pour U, Pu et Am respectivement. La colonne calix[6]arène a ensuite été couplée l’ICP-MS quadripolaire et les paramètres chromatographiques (diamètre de colonne, débit d’extraction et d’élution) optimisés. Ce système de couplage permet d’atteindre des limites de détection dans l’urine inférieures à 0,5 mBq.L-1 pour 238U et 243Am et inférieure à 5 mBq.L-1pour le 239Pu et 241Am, pour une durée totale d’analyse d’environ 6 heures. Ces performances ont démontré que cette méthode de couplage pourrait être utilisée en situation de crise
In the event of a nuclear crisis, involving actinides (U, Pu, Am) it is important to have fast analysis methods available in order to identify people that could be contaminated. Usually, they are performed in urine or faeces. Even though, analytical methods used with alpha detection are reliable they are lengthy and tedious to set up. This work consisted in developing an on-line coupling method between a calix[6]arene-based chromatography column and an inductively coupled plasma mass spectrometer (ICP-MS). To do so, a speciation study of actinides in mineralised urine was developed to understand the chemical equilibria happening during the actinides extraction. A protocol was elaborated to extract simultaneously all three actinides at pH ≈ 5, then co-elute them with 0.25 mol.L1 H3PO4. Recovery was 56 %, 74 % and 85 % for U, Pu and Am respectively. The column was then coupled to the ICP-MS. A parameter study helped defining mineralisation duration, extraction and elution flow-rates. It was then possible to propose an on-line coupling system allowing reaching detection limits lower than 0.5 mBq.L-1 for 238U and 243Am and lower than 5 mBq.L-1 for 239Pu and 241Am, for analysis duration lower than 6 hours. These analytical performances show the interest of this technique for a use in a nuclear crisis situation

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Haider, Syed. "Enhanced gel electrophoresis (GE) and inductively coupled plasma-mass spectrometry (ICP-MS) based methods for the identification and separation of proteins and peptides". Thesis, Loughborough University, 2012. https://dspace.lboro.ac.uk/2134/10279.

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The main focus of the PhD study was to develop new gel electrophoresis and ICP-MS based methods to analyze a wide variety of the bio-molecules such as proteins, phosphoproteins and metalloproteins etc. The tricine-sodium dodecyl sulfate-polyacrylamide gel electrophoresis (tricine-SDS-PAGE) method is commonly used to resolve low molecular mass proteins, however, it requires a high percentage gel and a very complicated procedure to achieve this separation. This study describes a modification to tricine-SDS-PAGE to make it more effective for the separation of smaller proteins and for coupling to ICP-MS. The modified method employs low percentage PAGE gels and low reagent concentrations that provide efficient separations, good quantitation and low matrix levels that are compatible with ICP-MS. This modified method was applied to analyze phosphopeptides. Phosphopeptides are very small in size and difficult to separate using the other techniques such as Laemmli SDS-PAGE, original tricine-SDS-PAGE, immobilized metal affinity chromatography (IMAC), size exclusion chromatography (SEC) etc. In this study a simplified procedure is described based on modifying the original tricine-SDS-PAGE method. A comparative study showed that this modified method successfully resolved a digest mixture of very low to high molecular mass phosphopeptides/peptides. In off-line coupling of this method with ICP-MS, much better recoveries of the peptides from the gel were obtained as compared to traditional methods which indicate the compatibility of this modified method for quantitative studies. An on-line coupling of the modified system with ICP-MS was also demonstrated and it was applied for the separation, detection and quantification of phosphopeptides. Another application of this modified system was the separation of serum proteins. Blood serum contains five major protein groups i.e., albumin, alpha-1 globulin, alpha-2 globulin, beta globulin and gamma globulin. The separation of these five major proteins in a single gel is difficult to achieve using traditional methods. The modified system was shown to be superior for the separation of these serum proteins in a 7% (m/v) native-PAGE gel and a cellulose acetate membrane. A further study was carried out into controlling the factors that cause metal loss and protein fragmentation in SDS-PAGE. Using a reducing sample buffer, and heating to high temperatures (90-100ºC) in alkaline or acidic conditions may cause protein fragmentation and decrease the metal binding affinity. 70ºC was found suitable to prepare the sample at neutral, alkaline or acidic pH as no fragmentation observed. To prevent metal loss, the binding constant (log K) values of metal-amino acids, play the major role. Those metals which have high binding affinities with the amino acids in proteins can also be affected by the variation of the pH so prior information about pH to maintain the binding constant values is essential to minimize metal loss. This was observed in the loss of zinc, and to a lesser extent copper from human serum albumin (HSA) as measured by inductively coupled plasma mass spectrometry (ICP-MS). The method described above was applied for the separation and quantification of the serum proteins obtained from age-related macular degeneration (AMD) patients (where the AMD patients were from Moorfields Eye Hospital, London). Zn and Cu were quantified employing external calibration. Zn concentration showed variation whilst Cu did not show any significant variations in samples from AMD patients. A brief study of the interaction of cisplatin and oxaliplatin with HSA and transferrin was also performed. Cisplatin bound much faster than oxaliplatin with HSA. After 24 hours incubation, cisplatin showed a decrease in signal intensity which indicates that cisplatin binding decreases with time. Cisplatin binding with transferrin as compared to HSA was not significant, which could be the result of unstable Pt-transferrin complex formation. Oxaliplatin did not show high binding to either protein, perhaps due to the presence of the bulky, non polar DACH ligand.

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Xu, Danhua. "A Study of magnetic thin film corrosion mechanisms with the development of a novel on-line coupling technique and with Microstructural and Magnetic Cross-Sectional Profiling Techniques". Full text open access at:, 2008. http://content.ohsu.edu/u?/etd,648.

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陳巧于. "Development of Sensitive Nanoprobing Techniques for Quantifying and Typing Viruses by Coupling with ICP-MS Detection". Thesis, 2009. http://ndltd.ncl.edu.tw/handle/35759309296256457091.

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7

Ho, MingChe, e 何明哲. "Development of On-line Microdialysis Sampling Technique Coupling with ETV-ICP-MS for the Determination of Trace Elements in simulated Biological Samples". Thesis, 2002. http://ndltd.ncl.edu.tw/handle/00317372122598462905.

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碩士
國立清華大學
原子科學系
90
In physiological studies, it is well known that most of the bioavailability and toxicity of trace elements strongly depend on the concentration. In view of the dialysate can be used to reflect the extracellular concentration of metal ions, in-vivo microdialysis coupled with suitable on-line instrumental analytical technique has been widely employed to investigate the physiological reactions in a specific micro-area of a living organism. Owing to the extremely low concentration of analytes and complex matrix are always encountered in the conjunction of analytical chemistry and biological researches, an on-line sampling and matrix separation technique dealing with high salt contented samples has been studied in the present work. In this study, a hyphenation technique comprising in-vivo microdialysis and ETV-ICP-MS was developed to monitor the dynamic variation of trace metals in simulated body fluid systems. The sampling system was constructed by a micro-injection pump and 6-way valve equipped with a 20-mL sample loop. The interface between sampling system and ETV-ICP-MS was built up with narrow PTFE tubing where the solution was driven by a peristaltic pump. To solve the salt interference caused by the ringer perfusate and to achieve optimal analytical signal, a mixture of palladium and NH4NO3 was employed as binary chemical modifier in the ETV separation procedure. The effects of pyrolysis and vaporization temperature and the amount of added modifiers on the analyte signal were also explored and optimized. Based on the stability and sensitivity studies, the proposed on-line system coupling microdialysis with ETV-ICP-MS has been proven feasible for the determination of trace elements ( Cu, Zn, Mn, Pb ) in biological samples.

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Capítulos de livros sobre o assunto "ICP-MS coupling"

1

Thomas, Robert. "Coupling ICP-MS with Chromatographic Separation Techniques for Speciation Studies". In Practical Guide to ICP-MS and Other Atomic Spectroscopy Techniques, 213–27. 4^a ed. Boca Raton: CRC Press, 2023. http://dx.doi.org/10.1201/9781003187639-19.

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Thomas, Robert J. "Coupling ICP-MS with Chromatographic Separation Techniques for Speciation Studies". In Measuring Heavy Metal Contaminants in Cannabis and Hemp, 251–64. First edition. | Boca Raton : Taylor and Francis, 2020.: CRC Press, 2020. http://dx.doi.org/10.1201/9781003004158-21.

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Robert, Thomas. "Coupling ICP-MS with Chromatographic Separation Techniques for Speciation Studies". In Measuring Elemental Impurities in Pharmaceuticals, 251–67. Boca Raton : Taylor & Francis, 2018. | Series: Practical spectroscopy ; [v. 40]: CRC Press, 2018. http://dx.doi.org/10.1201/b21952-21.

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"- Coupling ICP-MS with Chromatographic Techniques for Trace Element Speciation". In Practical Guide to ICP-MS, 230–45. CRC Press, 2013. http://dx.doi.org/10.1201/b14923-23.

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Pacheco, Pablo Hugo. "Speciation of Organic and Inorganic Selenium in Food and the Environment". In Chalcogen Chemistry: Fundamentals and Applications, 666–82. The Royal Society of Chemistry, 2023. http://dx.doi.org/10.1039/bk9781839167386-00666.

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Selenium is an essential element for humans. Selenium integrates proteins with antioxidant activity in the organism. Selenium enters the body mainly through the diet. Selenium presence in food depends on it is cycle in the environment. It is absorbed by plants from soil, and it is biomagnified through the food chain. Selenium distribution in the environment depends on its chemical specie. In addition selenium bioavailability in food is higher for organic species, like seleno-amino acids, rather than inorganic forms. Determination of specific seleno-species requires speciation analysis. Speciation analysis involves the coupling of a separation technique to a selenium detector. The separation techniques involved in speciation analysis are chromatographic procedures. The chromatographic mode employed depends on the selenium specie to be separated. Inductively coupled plasma mass spectrometry (ICP MS) is the preferred detector according to its sensibility and easy coupling. In recent years novel seleno-species have been described, like selenium-nanoparticles and selenized polysaccharides. Identification of novel seleno-species requires more selective and sensitive detectors like electrospray mass spectrometry (ESI MS).

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Trabalhos de conferências sobre o assunto "ICP-MS coupling"

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Desaulty, Anne-Marie, Philippe Lach e Sebastien Perret. "Rapid determination of Pb isotopes in water by coupling DGT passive samplers and MC-ICP-MS laser ablation". In Goldschmidt2021. France: European Association of Geochemistry, 2021. http://dx.doi.org/10.7185/gold2021.5927.

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Baglan, N. "Interface Development for Coupling Capillary Electrophoresis (CE) and Inductively Coupled Plasma-Mass Spectrometry (ICP-MS): Application to Plutonium Speciation". In PLUTONIUM FUTURES - THE SCIENCE: Third Topical Conference on Plutonium and Actinides. AIP, 2003. http://dx.doi.org/10.1063/1.1594676.

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Wang, Song, e Jun Wang. "Coupling Nebulizer System to LA-ICP-MS by a Y-Shape Connector and its Application for Signal Enhancement and Matrix Effect Supressing". In Goldschmidt2020. Geochemical Society, 2020. http://dx.doi.org/10.46427/gold2020.2761.

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Wallace, Chaneil J., Daniel J. Kontak e Elizabeth C. Turner. "Anomalous SedEx mineralization at the Walton Ag-Pb-Zn-Cu carbonate-hosted sulphide deposit (Nova Scotia, Canada): result of hydrocarbons?" In Irish-type Zn-Pb deposits around the world. Irish Association for Economic Geology, 2023. http://dx.doi.org/10.61153/nivf1636.

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Walton is a past-producing Ag-Pb-Zn-Cu sulphide carbonate-hosted deposit (0.41 Mt; head grade of 350 g/t Ag, 4.28% Pb, 1.29% Zn, and 0.52% Cu) hosted primarily by sideritized Viséan Macumber Formation limestone and juxtaposed to and replacing a barite ore body (4.5 Mt of >90% barite). Previous work demonstrated that mineralization came from heated (~300°C), saline (20-28 wt. % equiv. NaCl) fluids. The present study uses optical microscopy, SEM-EDS, and major- and in situ LA-ICP-MS trace-element signatures of the host, gangue, and ore phases to refine our understanding of the mineralizing fluid system. Sideritization of the Macumber Formation occurred after dolomitization. Dolomite and siderite are generally LREE-depleted, with mostly negative Ce anomalies and prominent negative Y anomalies. Pyrite has As levels ranging from <1 ppm to 7.7 wt. % that correlate positively with Ag (values up to 2,400 ppm); the latter likely accounts for most of the Ag in the deposit. The LREE-depleted patterns of various carbonate phases indicate that the ore fluids did not equilibrate with a LREE-rich reservoir, whereas negative Ce anomalies suggest precipitation from an oxidised fluid. The positive correlation between Ag and As implies their coupling and thus a similar source and/or transport mechanism. The proposed source of metals is from hydrocarbons, now preserved as abundant petroleum inclusions, sourced in the underlying Horton Group that may have been enriched in Ag, As, and Cu. The derivation of metals from hydrocarbons could explain differences between mineralization at Walton and other carbonate-hosted sulphide deposits in Nova Scotia that do not contain significant petroleum or Ag, As, and Cu.

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