36 research outputs found

    袦袝孝袨袛袠袣袗 袨袩袪袝袛袝袥袝袧袠携 袠袟袨孝袨袩袧蝎啸 袨孝袧袨楔袝袧袠袡 Cu 袠 Zn 袦袝孝袨袛袨袦 袦袣 袠小袩-袦小 小 袠小袩袨袥鞋袟袨袙袗袧袠袝袦 小袦袨袥蝎 AG MP-1

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    The isotopic composition of copper is of great interest for researchers in various fields of science, geochemistry and hydrology in particular, wherein the consideration is being given to the variations in the isotopic composition of the Earth's crust, extraterrestrial matter, and water basins, as well as to the origin and transfer of matter. Zn isotopes appear to be promising for identifying the sources and pathways of the environmental pollution. The aim of this study involves the refinement and validation of the zinc and copper isotopic ratio determination methodology covering the whole process from sample digestion to MC ICP-MS measurements. For this reason, as well as to assess the suitability of the methodology for the analysis of environmental samples, Zn and Cu isotopic analysis of the BHVO-2, BCR-2 and AGV2 USGS certified reference materials has been performed. The method for determination of Cu and Zn stable isotope ratios by multi-collector inductively coupled plasma mass spectrometry in environmental samples is developed. The application of the AG MP1 resin with optimized layer parameters (resin bed height 3.5 cm, diameter 1 cm) provides the highpurity Cu and Zn fractions. The method is characterized by high throughput and adequate analytical figures of merit when using the standardsample bracketing technique for mass bias correction. The procedural blanks related to chemical dissolution and ion exchange procedures are lower than 1 and 3 ng for Cu and Zn, respectively, assuring no blank effect on the isotopic composition of samples. The accuracy and precision obtained for Cu and Zn isotope measurements in the BHVO2, BCR2 and AGV2 geological certified reference materials demonstrate good agreement with the reference values published. 漏 2022 Institute of the Earth's Crust. All rights reserved.袗袗袗袗袗181180530900458;聽Ministry of Education and Science of the Russian Federation,聽Minobrnauka: 075-15-2021-680;聽Russian Science Foundation,聽RSF: 18-77-10024The work of Okuneva T.G. is supported by the Russian Science Foundation (project 18-77-10024), the rest authors are supported by the state assignment of the IGG UB RAS 袗袗袗袗袗181180530900458. Isotopic analyses are performed at the "Geoanalitik" Shared Research Facilities of the IGG UB RAS. The reequipment and comprehensive development of the "Geoanalitik" Shared Research Facilities of the IGG UB RAS is financially supported by the grant of the Ministry of Science and Higher Education of the Russian Federation (Agreement 075-15-2021-680).authors are supported by the state assignment of the IGG UB RAS 袗袗袗袗袗 鐚?鐚冪寖绋冪垉鐪冪攦鐖冪瑑鐖冪垉鐦?绋 Isotopic analyses are performed at the 銟Geoanalitik ? Shared Research Facilities of the IGG UB RAS. The reequipment and comprehensive development of the 銟Geoanalitik 銟 Shared Research Facilities of the IGG UB RAS is 韤inancially supported by the grant of the Ministry of Science and Higher Education of the Russian Federation (Agreement 075-15-2021-680).FUNDING: The work of Okuneva T.G. is supported by the Russian Science Foundation (project 18-77-10024), the res

    THE METHOD FOR Cu AND Zn ISOTOPE RATIO DETERMINATION BY MC ICP-MS USING THE AG MP-1 RESIN

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    The isotopic composition of copper is of great interest for researchers in various fields of science, geochemistry and hydrology in particular, wherein the consideration is being given to the variations in the isotopic composition of the Earth鈥檚 crust, extraterrestrial matter, and water basins, as well as to the origin and transfer of matter. Zn isotopes appear to be promising for identifying the sources and pathways of the environmental pollution. The aim of this study involves the refinement and validation of the zinc and copper isotopic ratio determination methodology covering the whole process from sample digestion to MC ICP-MS measurements. For this reason, as well as to assess the suitability of the methodology for the analysis of environmental samples, Zn and Cu isotopic analysis of the BHVO-2, BCR-2 and AGV-2 USGS certified reference materials has been performed. The method for determination of Cu and Zn stable isotope ratios by multi-collector inductively coupled plasma mass spectrometry in environmental samples is developed. The application of the AG MP-1 resin with optimized layer parameters (resin bed height 3.5 cm, diameter 1 cm) provides the high-purity Cu and Zn fractions. The method is characterized by high throughput and adequate analytical figures of merit when using the standard-sample bracketing technique for mass bias correction. The procedural blanks related to chemical dissolution and ion exchange procedures are lower than 1 and 3 ng for Cu and Zn, respectively, assuring no blank effect on the isotopic composition of samples. The accuracy and precision obtained for Cu and Zn isotope measurements in the BHVO-2, BCR-2 and AGV-2 geological certified reference materials demonstrate good agreement with the reference values published

    袠袟校效袝袧袠袝 袩袪袨笑袝小小袗 小袨袨小袗袞袛袝袧袠携 袦蝎楔鞋携袣袗 袠 小校袪鞋袦蝎 袩袪袠 袨孝袛袝袥袝袧袠袠 袦袗袣袪袨袣袨袥袠效袝小孝袙 袞袝袥袝袟袗, 啸袪袨袦袗 袙 袙袠袛袝 Na3FeF6, Na3CrF6

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    Theoretical and experimental studies were carried out for the first time in order to determine the mechanism of co-precipitation of arsenic and antimony during their separation from the macro-quantities of iron and chromium in the form of Na3FeF6 and Na3CrF6 sediments. It was found that the application of Dubinin-Radushkevich adsorption isotherm gives the most accurate description of the process. The average free energy of adsorption for As and Sb is 9.6 and 9.7 kJ/mol respectively. Co-precipitation of analytes in the micropores of precipitates occurred as a result of the chemical (ion-exchange) reaction. The possibility of inhibiting this process by introducing a different amount of complexing agent (hydrofluoric acid) was studied. The addition of HF led to the formation of more coarse crystalline precipitates with lower specific surface area and porosity. For the accurate ICP-AES determination of analytes (As, Sb) the molar ratio of precipitating agent / complexing agent (NaF / HF) 鈮 1 should be strictly observed. According to the developed procedure, state standard samples of steels and nickel-based precision alloys were prepared for ICP-AES determination of As and Sb contents. The difference between the found and certified content of analytes did not exceed the permitted deviations given in the corresponding Russian state standards. The ICP-AES method of simultaneous determination of As and Sb contents after their preliminary separation from the main components is recommended for the analysis of materials with high content of Fe and Cr.Keywords: sorption, co-precipitation, determination of arsenic and antimony, inductively coupled plasma atomic emission spectroscopy (ICP-AES), adsorption isotherms, fluorides, matrix componentsDOI: http://dx.doi.org/10.15826/analitika.2017.21.3.001聽A.V. Maiorova1, S.Yu. Melchakov1,2, T.G. Okuneva2 , K.A. Vorontsova1, M.A. Mashkovtsev21Institute of Metallurgy of Ural Branch of Russian Academy of Sciences,101 Amundsena st., Yekaterinburg, 620016, Russian Federation2Ural Federal University, 19 Mira st., Yekaterinburg, 620002, Russian Federation袙锌械褉胁褘械 锌褉芯胁械写械薪褘 褌械芯褉械褌懈褔械褋泻懈械 懈 褝泻褋锌械褉懈屑械薪褌邪谢褜薪褘械 懈褋褋谢械写芯胁邪薪懈褟 褋 褑械谢褜褞 芯锌褉械写械谢械薪懈褟 屑械褏邪薪懈蟹屑邪 褋芯芯褋邪卸写械薪懈褟 屑褘褕褜褟泻邪 懈 褋褍褉褜屑褘 锌褉懈 芯褌写械谢械薪懈懈 芯褌 屑邪泻褉芯泻芯谢懈褔械褋褌胁 卸械谢械蟹邪, 褏褉芯屑邪 胁 胁懈写械 Na3FeF6, Na3CrF6. 校褋褌邪薪芯胁谢械薪芯, 褔褌芯 懈褋锌芯谢褜蟹芯胁邪薪懈械 懈蟹芯褌械褉屑褘 邪写褋芯褉斜褑懈懈 袛褍斜懈薪懈薪邪-袪邪写褍褕泻械胁懈褔邪 锌褉懈胁芯写懈褌 泻 薪邪懈斜芯谢械械 褌芯褔薪芯屑褍 芯锌懈褋邪薪懈褞 锌褉芯褑械褋褋邪. 小褉械写薪褟褟 褋胁芯斜芯写薪邪褟 褝薪械褉谐懈褟 邪写褋芯褉斜褑懈懈 写谢褟 As 懈 Sb 锌褉懈薪懈屑邪械褌 蟹薪邪褔械薪懈褟 9.6 懈 9.7 泻袛卸/屑芯谢褜 褋芯芯褌胁械褌褋褌胁械薪薪芯. 小芯芯褋邪卸写械薪懈械 胁 屑懈泻褉芯锌芯褉邪褏 芯褋邪写泻芯胁 锌褉芯懈褋褏芯写懈褌 胁 褉械蟹褍谢褜褌邪褌械 褏懈屑懈褔械褋泻芯泄 (懈芯薪芯芯斜屑械薪薪芯泄) 褉械邪泻褑懈懈. 袠蟹褍褔械薪邪 胁芯蟹屑芯卸薪芯褋褌褜 懈薪谐懈斜懈褉芯胁邪薪懈褟 锌褉芯褑械褋褋邪 褋 锌芯屑芯褖褜褞 胁胁械写械薪懈褟 褉邪蟹薪芯谐芯 泻芯谢懈褔械褋褌胁邪 泻芯屑锌谢械泻褋芯芯斜褉邪蟹褍褞褖械谐芯 邪谐械薪褌邪 鈥 褎褌芯褉芯胁芯写芯褉芯写薪芯泄 泻懈褋谢芯褌褘. 袝械 懈褋锌芯谢褜蟹芯胁邪薪懈械 锌褉懈胁芯写懈褌 泻 锌芯谢褍褔械薪懈褞 斜芯谢械械 泻褉褍锌薪芯泻褉懈褋褌邪谢谢懈褔械褋泻懈褏 芯褋邪写泻芯胁 褋 屑械薪褜褕械泄 褍写械谢褜薪芯泄 锌芯胁械褉褏薪芯褋褌褜褞 懈 锌芯褉懈褋褌芯褋褌褜褞. 袛谢褟 褌芯褔薪芯谐芯 袠小袩-袗协小 芯锌褉械写械谢械薪懈褟 邪薪邪谢懈褌芯胁 薪械芯斜褏芯写懈屑芯 褋褌褉芯谐芯械 褋芯斜谢褞写械薪懈械 屑芯谢褜薪芯谐芯 褋芯芯褌薪芯褕械薪懈褟 芯褋邪写懈褌械谢褜/泻芯屑锌谢械泻褋芯芯斜褉邪蟹褍褞褖懈泄 邪谐械薪褌 (NaF/HF) 鈮 1. 袩芯 褉邪蟹褉邪斜芯褌邪薪薪芯泄 锌褉芯褑械写褍褉械 泻 袠小袩-袗协小 芯锌褉械写械谢械薪懈褞 褋芯写械褉卸邪薪懈褟 As 懈 Sb 斜褘谢懈 锌芯写谐芯褌芯胁谢械薪褘 袚小袨 褋芯褋褌邪胁邪 褋褌邪谢懈 懈 褋锌谢邪胁芯胁 锌褉械褑懈蟹懈芯薪薪芯谐芯 褌懈锌邪 薪邪 薪懈泻械谢械胁芯泄 芯褋薪芯胁械. 袪邪蟹薪懈褑邪 屑械卸写褍 薪邪泄写械薪薪褘屑 懈 邪褌褌械褋褌芯胁邪薪薪褘屑 懈褏 褋芯写械褉卸邪薪懈械屑 薪械 锌褉械胁褘褕邪械褌 薪芯褉屑邪褌懈胁芯胁, 锌褉懈胁械写械薪薪褘褏 胁 褋芯芯褌胁械褌褋褌胁褍褞褖懈褏 袚袨小孝邪褏.聽 袠小袩-袗协小 屑械褌芯写懈泻邪 芯写薪芯胁褉械屑械薪薪芯谐芯 芯锌褉械写械谢械薪懈褟 褋芯写械褉卸邪薪懈褟 As 懈 Sb 褋 锌褉械写胁邪褉懈褌械谢褜薪褘屑 芯褌写械谢械薪懈械屑 芯褋薪芯胁薪褘褏 泻芯屑锌芯薪械薪褌芯胁 褉械泻芯屑械薪写芯胁邪薪邪 写谢褟 邪薪邪谢懈蟹邪 屑邪褌械褉懈邪谢芯胁 褋 胁褘褋芯泻懈屑 褋芯写械褉卸邪薪懈械屑 Fe 懈 Cr.袣谢褞褔械胁褘械 褋谢芯胁邪: 邪写褋芯褉斜褑懈褟, 褋芯芯褋邪卸写械薪懈械, 芯锌褉械写械谢械薪懈械 屑褘褕褜褟泻邪 懈 褋褍褉褜屑褘, 邪褌芯屑薪芯-褝屑懈褋褋懈芯薪薪邪褟 褋锌械泻褌褉芯屑械褌褉懈褟 褋 懈薪写褍泻褌懈胁薪芯 褋胁褟蟹邪薪薪芯泄 锌谢邪蟹屑芯泄 (袠小袩-袗协小), 懈蟹芯褌械褉屑褘 邪写褋芯褉斜褑懈懈, 褎褌芯褉懈写褘, 屑邪褌褉懈褔薪褘械 泻芯屑锌芯薪械薪褌褘DOI: http://dx.doi.org/10.15826/analitika.2017.21.3.00

    OPTIMIZATION OF CONDITIONS OF SEPARATION OF CHROMIUM AND IRON FOR ICP-AES DETERMINATION OF ARSENIC AND ANTIMONY IN STEELS

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    For the first time is given a new approach to solve the problem of separation of trace analytes (As, Sb) from matrix elements (Fe, Cr) forming steels. Matrix elements provide an interfering effect on the results of arsenic and antimony determination employing the ICPAES analysis. It is found that required deposition conditions of macroamounts (Fe, Cr) should meet the molar ratio NaF/HF close to 1 in aim to inhibit analytes coprecipitation.袪邪斜芯褌邪 胁褘锌芯谢薪械薪邪 锌褉懈 褎懈薪邪薪褋芯胁芯泄 锌芯写写械褉卸泻械 袪肖肖袠 (谐褉邪薪褌 鈩 16-33-00317)

    袨锌褉械写械谢械薪懈械 褎芯薪芯胁褘褏 懈蟹芯褌芯锌薪褘褏 芯褌薪芯褕械薪懈泄 斜懈芯写芯褋褌褍锌薪芯谐芯 褋褌褉芯薪褑懈褟 写谢褟 褉褍写薪懈泻邪 斜褉芯薪蟹芯胁芯谐芯 胁械泻邪 薪芯胁芯褌械屑懈褉褋泻懈泄

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    To assess the mobility and provenance of ancient populations, it is necessary to compare their 87Sr/86Sr isotopic ratios with the local bioavailable strontium baseline (background), characteristic of each specific location or potential provenance region of an individual or artifact. Its definition requires a comprehensive approach to the analysis of heterogeneous samples (芦proxies禄) characterizing the ecosystem of the archaeological site under study, the identification of the most suitable proxies, as well as the unification and standardization of the sampling and analytic protocols. A pilot study is presented devoted the definition of the local range of bioavailable strontium by the example of the Novotemirskiy Bronze Age mine (Southern Urals). 87Sr/86Sr isotope ratios were determined in surface and underground water, bedrock (serpentinite), clay from the mine wall, and steppe polecat鈥檚 bone, as well as in grass and a bivalve shell from the lake. The lowest range of strontium isotope ratios relative to each other is characteristic of surface and groundwater, shell and grass, which allows them to be used to determine the combined baseline of bioavailable strontium. Multi-proxy (surface and underground water, grass and a bivalve shell) local bioavailable strontium baseline for the Novotemirskiy ancient mine (Southern Urals) is 0,7096 卤 0,0003 (2蟽, n = 5). 漏 2021 Russian Academy of Sciences, Institute of Archaeology. All rights reserved.袪邪斜芯褌邪 胁褘锌芯谢薪械薪邪 锌褉懈 褎懈薪邪薪褋芯胁芯泄 锌芯写写械褉卸泻械 袪袧肖, 锌褉芯械泻褌 No 20-18-00402 芦袦懈谐褉邪褑懈懈 褔械谢芯胁械褔械褋泻懈褏 泻芯谢谢械泻褌懈胁芯胁 懈 懈薪写懈胁懈写褍邪谢褜薪邪褟 屑芯斜懈谢褜薪芯褋褌褜 胁 褉邪屑泻邪褏 屑褍谢褜褌懈写懈褋褑懈锌谢懈薪邪褉薪芯谐芯 邪薪邪谢懈蟹邪 邪褉褏械芯谢芯谐懈褔械褋泻芯泄 懈薪褎芯褉屑邪褑懈懈 (斜褉芯薪蟹芯胁褘泄 胁械泻 挟卸薪芯谐芯 校褉邪谢邪)禄, 胁 挟校褉袚校 (袧袠校) (袛. 袙. 袣懈褋械谢械胁邪 鈥 谐械芯褏懈屑懈褔械褋泻邪褟 懈薪褌械褉锌褉械褌邪褑懈褟, 袩. 小. 袗薪泻褍褕械胁邪 鈥 邪褉褏械芯谢芯谐懈褔械褋泻邪褟 写芯泻褍屑械薪褌邪褑懈褟 懈 邪薪邪谢懈褌懈泻邪; 孝. 袚. 袨泻褍薪械胁邪, 袗. 袙. 袣邪褋褜褟薪芯胁邪 鈥 懈蟹屑械褉械薪懈褟 锌褉芯斜 懈 褋褌邪薪写邪褉褌薪褘褏 芯斜褉邪蟹褑芯胁; 袝. 小. 楔邪谐邪谢芯胁, 袦. 袧. 袗薪泻褍褕械胁 鈥 芯褌斜芯褉 锌褉芯斜 懈 谐械芯谢芯谐懈褔械褋泻邪褟 褏邪褉邪泻褌械褉懈褋褌懈泻邪)

    ENVIRONMENTAL GEOCHEMISTRY OF HEAVY METALS AND METALLOIDS IN THE WATER-SOLUBLE SOIL FRACTION (ORENBURG REGION)

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    The study is devoted to the investigation of distribution of heavy metals and metalloids (HMM) in the water-soluble soil fraction of soil samples collected over the territory of the Orenburg Region. HMM are analyzed by ICP-MS, and their environmental-geochemical indices are calculated and discussed.袪邪斜芯褌邪 胁褘锌芯谢薪械薪邪 胁 笑袣袩 校褉袨 袪袗袧 芦袚械芯邪薪邪谢懈褌懈泻禄 胁 褉邪屑泻邪褏 褌械屑褘 鈩 123011800012-9 谐芯褋褍写邪褉褋褌胁械薪薪芯谐芯 蟹邪写邪薪懈褟 袠袚袚 校褉袨 袪袗袧

    87Sr/86Sr ISOTOPE RATIOS IN THE RIVER WATERS OF THE SOUTHERN URALS

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    87Sr/86Sr isotopic ratios are widely used to identify strontium sources and study strontium behaviour in (bio)geochemical cycles. 87Sr/86Sr in surface waters can reflect the average composition of bioavailable (i.e. available for further absorption by plants and animals) strontium in the catchment specific area. Based on those 87Sr/86Sr ratios, the regional maps of the bioavailable strontium distribution (strontium isoscapes) can be compiled. A complex block structure characterizes the Ural mountain system. Individual parts (blocks) are composed of rocks of various ages, genesis and geochemical characteristics, which can radically change at a distance of several tens of kilometres. Such variability would be reflected in strontium isotopic ratios, thus making it possible to determine the local isotopic signatures of bioavailable strontium. This work aimed to study 87Sr/86Sr in the water in the rivers of the Southern Urals. We determined the contents and isotopic ratios of strontium in river water samples collected from the territories of the Orenburg and Chelyabinsk regions and the Republic of Bashkortostan in 2019-2020. For the first time in the surface water of the rivers in the Southern Urals (Ural, Belaya, Tobol, Karagaily-Ayat, Sim, and others), the 87Sr/86Sr isotopic ratios have been determined, and their variations have been analyzed. 87Sr/86Sr values vary in the range 0.70666-0.71063 (average 0.70908) for the rivers of the Urals basin, 0.70749-0.71058 (average 0.70924) for the Kama-Volga basin, 0.70946-0.71176 (average 0.71071) for the Tobol basin. Such features of the strontium isotopic composition may be due to the influence of underlying rocks of the catchment area drained by river water. The data obtained can be used to identify the sources of strontium input into the water system during hydrological and environmental studies; to confirm the authenticity of food products of plant and animal origin; to carry out comparisons in the studies of the migration of ancient people and animals, as well as to determine the raw material areas for the production of vegetable and woollen textiles and wooden products in antiquity. 漏 2022 Institute of the Earth's Crust. All rights reserved.Russian Foundation for Basic Research,聽袪肖肖袠: 20-09-00194;聽Ministry of Education and Science of the Russian Federation,聽Minobrnauka: 075-15-2021-680The study is supported by the Russian Foundation for Basic Research (project 20-09-00194) and performed within the state task of the IGG UB RAS 袗袗袗袗-袗18-118053090045-8 at the "Geoanalitik" shared research facilities of the IGG UB RAS. The re-equipment and comprehensive development of the "Geoanalitik" shared research facilities of the IGG UB RAS is financially supported by the grant of the Ministry of Science and Higher Education of the Russian Federation (Agreement 075-15-2021-680).FUNDING: The study is supported by the Russian Foundation for Basic Research (project 20-09-00194) and performedwithin the state task of the IGG UB RAS 袗袗袗袗-袗 鐚冪▉鐚冪寖绋冪垉鐪冪攦鐖? 鐖冪垉鐦冪渷绋 at the 銟Geoana?itik 銟 shared research faci?ities of the IGG UB RAS. The re-equipment and comprehensive deve?opment of the 銟Geoana?itik 銟 shared research faci?ities of the IGG UB RAS is 韤inancia??y supported by the grant of the Ministry of Science and Higher Education of the Russian Federation (Agreement 075-15-2021-680)

    THE ANALYSIS OF ELEMENTAL AND 87Sr/86Sr ISOTOPIC COMPOSITON FOR THE AUTHENTICATION AND DETERMINATION OF THE GEOGRAPHICAL ORIGIN OF RUSSIAN WINES

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    The study is devoted to the development of the analytical methodology for elemental and Sr isotopic composition by Q-ICP-MS and MC-ICP-MS of wines in order to their further authentication and determination of the geographical origin by the example of Russian wines.袪邪斜芯褌邪 胁褘锌芯谢薪械薪邪 胁 笑袣袩 校褉袨 袪袗袧 芦袚械芯邪薪邪谢懈褌懈泻禄 胁 褉邪屑泻邪褏 褌械屑褘 鈩 123011800012-9 谐芯褋褍写邪褉褋褌胁械薪薪芯谐芯 蟹邪写邪薪懈褟 袠袚袚 校褉袨 袪袗袧

    袦袝孝袨袛袠袣袗 袨袩袪袝袛袝袥袝袧袠携 袠袟袨孝袨袩袧蝎啸 袨孝袧袨楔袝袧袠袡 Cu 袠 Zn 袦袝孝袨袛袨袦 袦袣 袠小袩-袦小 小 袠小袩袨袥鞋袟袨袙袗袧袠袝袦 小袦袨袥蝎 AG MP-1

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    The isotopic composition of copper is of great interest for researchers in various fields of science, geochemistry and hydrology in particular, wherein the consideration is being given to the variations in the isotopic composition of the Earth鈥檚 crust, extraterrestrial matter, and water basins, as well as to the origin and transfer of matter. Zn isotopes appear to be promising for identifying the sources and pathways of the environmental pollution. The aim of this study involves the refinement and validation of the zinc and copper isotopic ratio determination methodology covering the whole process from sample digestion to MC ICP-MS measurements. For this reason, as well as to assess the suitability of the methodology for the analysis of environmental samples, Zn and Cu isotopic analysis of the BHVO-2, BCR-2 and AGV-2 USGS certified reference materials has been performed. The method for determination of Cu and Zn stable isotope ratios by multi-collector inductively coupled plasma mass spectrometry in environmental samples is developed. The application of the AG MP-1 resin with optimized layer parameters (resin bed height 3.5 cm, diameter 1 cm) provides the high-purity Cu and Zn fractions. The method is characterized by high throughput and adequate analytical figures of merit when using the standard-sample bracketing technique for mass bias correction. The procedural blanks related to chemical dissolution and ion exchange procedures are lower than 1 and 3 ng for Cu and Zn, respectively, assuring no blank effect on the isotopic composition of samples. The accuracy and precision obtained for Cu and Zn isotope measurements in the BHVO-2, BCR-2 and AGV-2 geological certified reference materials demonstrate good agreement with the reference values published.袠蟹芯褌芯锌薪褘泄 褋芯褋褌邪胁 屑械写懈 锌褉械写褋褌邪胁谢褟械褌 斜芯谢褜褕芯泄 懈薪褌械褉械褋 写谢褟 懈褋褋谢械写芯胁邪褌械谢械泄 胁 褉邪蟹谢懈褔薪褘褏 芯斜谢邪褋褌褟褏 薪邪褍泻懈, 胁 褔邪褋褌薪芯褋褌懈 胁 谐械芯褏懈屑懈懈 懈 谐懈写褉芯谢芯谐懈懈, 谐写械 褉邪褋褋屑邪褌褉懈胁邪褞褌褋褟 胁邪褉懈邪褑懈懈 懈蟹芯褌芯锌薪芯谐芯 褋芯褋褌邪胁邪 蟹械屑薪芯泄 泻芯褉褘 懈 胁薪械蟹械屑薪芯谐芯 胁械褖械褋褌胁邪, 胁芯写薪褘褏 斜邪褋褋械泄薪芯胁, 邪 褌邪泻卸械 胁芯锌褉芯褋褘 锌褉芯懈褋褏芯卸写械薪懈褟 懈 锌褉芯褑械褋褋褘 锌械褉械薪芯褋邪 胁械褖械褋褌胁邪. 袠蟹芯褌芯锌褘 Zn 锌械褉褋锌械泻褌懈胁薪褘 写谢褟 芯锌褉械写械谢械薪懈褟 懈褋褌芯褔薪懈泻芯胁 懈 锌褍褌械泄 蟹邪谐褉褟蟹薪械薪懈褟 芯泻褉褍卸邪褞褖械泄 褋褉械写褘. 笑械谢褜褞 写邪薪薪芯谐芯 懈褋褋谢械写芯胁邪薪懈褟 褟胁谢褟械褌褋褟 褍褌芯褔薪械薪懈械 懈 胁邪谢懈写邪褑懈褟 屑械褌芯写懈泻懈 懈蟹屑械褉械薪懈褟 懈蟹芯褌芯锌薪褘褏 褋芯芯褌薪芯褕械薪懈泄 褑懈薪泻邪 懈 屑械写懈, 芯褏胁邪褌褘胁邪褞褖械泄 胁械褋褜 锌褉芯褑械褋褋 鈥 芯褌 褉邪蟹谢芯卸械薪懈褟 芯斜褉邪蟹褑邪 写芯 懈蟹屑械褉械薪懈泄 屑械褌芯写芯屑 袦袣 袠小袩-袦小. 袛谢褟 芯褑械薪泻懈 锌褉懈谐芯写薪芯褋褌懈 屑械褌芯写懈泻懈 邪薪邪谢懈蟹邪 芯斜褉邪蟹褑芯胁 芯泻褉褍卸邪褞褖械泄 褋褉械写褘 斜褘谢 锌褉芯胁械写械薪 懈蟹芯褌芯锌薪褘泄 邪薪邪谢懈蟹 Zn 懈 Cu 胁 褋褌邪薪写邪褉褌薪褘褏 芯斜褉邪蟹褑邪褏 BHVO-2, BCR-2 懈 AGV-2, 褋械褉褌懈褎懈褑懈褉芯胁邪薪薪褘褏 袚械芯谢芯谐懈褔械褋泻懈泄 褋谢褍卸斜芯泄 小楔袗. 袪邪蟹褉邪斜芯褌邪薪 屑械褌芯写 芯锌褉械写械谢械薪懈褟 芯褌薪芯褕械薪懈泄 褋褌邪斜懈谢褜薪褘褏 懈蟹芯褌芯锌芯胁 Cu 懈 Zn 褋 锌芯屑芯褖褜褞 屑褍谢褜褌懈泻芯谢谢械泻褌芯褉薪芯泄 屑邪褋褋-褋锌械泻褌褉芯屑械褌褉懈懈 褋 懈薪写褍泻褌懈胁薪芯 褋胁褟蟹邪薪薪芯泄 锌谢邪蟹屑芯泄 胁 褝泻芯谢芯谐懈褔械褋泻懈褏 锌褉芯斜邪褏. 袩褉懈屑械薪械薪懈械 褋屑芯谢褘 AG MP-1 褋 芯锌褌懈屑懈蟹懈褉芯胁邪薪薪褘屑懈 锌邪褉邪屑械褌褉邪屑懈 褋谢芯褟 (胁褘褋芯褌邪 褋谢芯褟 褋屑芯谢褘 3.5 褋屑, 写懈邪屑械褌褉 1 褋屑) 芯斜械褋锌械褔懈胁邪械褌 锌芯谢褍褔械薪懈械 褎褉邪泻褑懈泄 Cu 懈 Zn 胁褘褋芯泻芯泄 褔懈褋褌芯褌褘. 袦械褌芯写 芯褌谢懈褔邪械褌褋褟 胁褘褋芯泻芯泄 锌褉芯懈蟹胁芯写懈褌械谢褜薪芯褋褌褜褞 懈 褍写芯胁谢械褌胁芯褉懈褌械谢褜薪褘屑懈 屑械褌褉芯谢芯谐懈褔械褋泻懈屑懈 褏邪褉邪泻褌械褉懈褋褌懈泻邪屑懈 锌褉懈 懈褋锌芯谢褜蟹芯胁邪薪懈懈 斜褉械泻械褌懈薪谐邪 写谢褟 泻芯褉褉械泻褑懈懈 写懈褋泻褉懈屑懈薪邪褑懈懈 懈芯薪芯胁 锌芯 屑邪褋褋械. 袩褉芯褑械写褍褉薪褘械 斜谢邪薪泻懈 (褏芯谢芯褋褌褘械 锌褉芯斜褘), 芯褌薪芯褋褟褖懈械褋褟 泻 锌褉芯褑械写褍褉邪屑 褏懈屑懈褔械褋泻芯谐芯 褉邪褋褌胁芯褉械薪懈褟 懈 褏褉芯屑邪褌芯谐褉邪褎懈懈, 褋芯褋褌邪胁谢褟褞褌 屑械薪械械 1 薪谐 写谢褟 Cu 懈 3 薪谐 写谢褟 Zn, 褔褌芯 谐邪褉邪薪褌懈褉褍械褌 芯褌褋褍褌褋褌胁懈械 蟹薪邪褔懈屑芯谐芯 胁谢懈褟薪懈褟 褏芯谢芯褋褌芯泄 (泻芯薪褌褉芯谢褜薪芯泄) 锌褉芯斜褘 薪邪 懈蟹芯褌芯锌薪褘泄 褋芯褋褌邪胁 芯斜褉邪蟹褑芯胁. 孝芯褔薪芯褋褌褜 懈 锌褉械褑懈蟹懈芯薪薪芯褋褌褜, 锌芯谢褍褔械薪薪褘械 锌褉懈 懈蟹屑械褉械薪懈褟褏 懈蟹芯褌芯锌芯胁 Cu 懈 Zn 胁 褋械褉褌懈褎懈褑懈褉芯胁邪薪薪褘褏 谐械芯谢芯谐懈褔械褋泻懈褏 褋褌邪薪写邪褉褌薪褘褏 屑邪褌械褉懈邪谢邪褏 BHVO-2, BCR-2 懈 AGV-2, 写械屑芯薪褋褌褉懈褉褍褞褌 褏芯褉芯褕械械 褋芯谐谢邪褋懈械 褋 芯锌褍斜谢懈泻芯胁邪薪薪褘屑懈 褋械褉褌懈褎懈褑懈褉芯胁邪薪薪褘屑懈 蟹薪邪褔械薪懈褟屑懈
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