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Stable isotope dilution analysis of hydrologic samples by inductively coupled plasma mass spectrometry

Analytical Chemistry

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Abstract

Inductively coupled plasma mass spectrometry is employed in the determination of Ni, Cu, Sr, Cd, Ba, Ti, and Pb in nonsaline, natural water samples by stable isotope dilution analysis. Hydrologic samples were directly analyzed without any unusual pretreatment. Interference effects related to overlapping isobars, formation of metal oxide and multiply charged ions, and matrix composition were identified and suitable methods of correction evaluated. A comparability study snowed that single-element isotope dilution analysis was only marginally better than sequential multielement isotope dilution analysis. Accuracy and precision of the single-element method were determined on the basis of results obtained for standard reference materials. The instrumental technique was shown to be ideally suited for programs associated with certification of standard reference materials.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Stable isotope dilution analysis of hydrologic samples by inductively coupled plasma mass spectrometry
Series title:
Analytical Chemistry
Volume
59
Issue:
11
Year Published:
1987
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Analytical Chemistry
First page:
1568
Last page:
1575
Number of Pages:
8