ION EXCHANGE SEPARATION OF CHROMIUM FROM NATURAL WATER MATRIX FOR STABLE ISOTOPE MASS SPECTROMETRIC ANALYSIS
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dc.contributor.author | Ball J.W. | |
dc.contributor.author | Bassett R.L. | |
dc.date.accessioned | 2021-01-23T00:52:16Z | |
dc.date.available | 2021-01-23T00:52:16Z | |
dc.date.issued | 2000 | |
dc.identifier | https://elibrary.ru/item.asp?id=254248 | |
dc.identifier.citation | Chemical Geology, 2000, 168, 1, 123-134 | |
dc.identifier.issn | 0009-2541 | |
dc.identifier.uri | https://repository.geologyscience.ru/handle/123456789/23584 | |
dc.description.abstract | A method has been developed for separating the Cr dissolved in natural water from matrix elements and determination of its stable isotope ratios using solid-source thermal-ionization mass spectrometry (TIMS). The separation method takes advantage of the existence of the oxidized form of Cr as an oxyanion to separate it from interfering cations using anion-exchange chromatography, and of the reduced form of Cr as a positively charged ion to separate it from interfering anions such as sulfate. Subsequent processing of the separated sample eliminates residual organic material for application to a solid source filament. Ratios for 53Cr/52Cr for National Institute of Standards and Technology Standard Reference Material 979 can be measured using the silica gel-boric acid technique with a filament-to-filament standard deviation in the mean 53Cr/52Cr ratio for 50 replicates of 0.00005 or less. | |
dc.subject | CHROMIUM | |
dc.subject | STABLE ISOTOPES | |
dc.subject | MASS SPECTROMETRY | |
dc.subject | ION EXCHANGE | |
dc.subject | SEPARATION | |
dc.title | ION EXCHANGE SEPARATION OF CHROMIUM FROM NATURAL WATER MATRIX FOR STABLE ISOTOPE MASS SPECTROMETRIC ANALYSIS | |
dc.type | Статья |
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