Stable isotope dilution analysis of hydrologic samples by inductively coupled plasma mass spectrometry
Analytical Chemistry
By: John R. Garbarino and Howard E. Taylor
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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.
| 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 |
| DOI | 10.1021/ac00138a018 |
| Volume | 59 |
| Issue | 11 |
| Year Published | 1987 |
| Language | English |
| Publisher | American Chemical Society |
| Contributing office(s) | Toxic Substances Hydrology Program |
| Description | 8 p. |
| First page | 1568 |
| Last page | 1575 |
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