Analytical laboratory comparison of major and minor constituents in an active crater lake

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書誌事項

公開日
2000-04
権利情報
  • https://www.elsevier.com/tdm/userlicense/1.0/
DOI
  • 10.1016/s0377-0273(99)00171-7
公開者
Elsevier BV

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説明

Abstract The crater lake water from Maly Semiachik volcano in Kamchatka was used for the international analytical laboratory comparison of major and minor elements, and hydrogen, sulfur, and oxygen isotope data. Eight institutions participated in this program, giving analytical results of 9 major and 20 minor elements mainly by using ICP-AES for cations and IC for anions. Among the major elements, Na, Mg and Si showed coefficients of variation (CV) of 10% or more, whereas B, Al, Fe, Mn had coefficients less than 7%. The CV% of the minor elements Co, Cu, P, Cr, Pb was much greater (>30%) while the V analyses agreed well ( 2000 ppm) and SO 4 (>5000 ppm) gave considerable ranges (5.1 and 8.8 CV%, respectively) as did the obtained pH values (22 CV%). The measured δ 18 O of the water samples and δ 34 S of sulfate are in excellent agreement but the δ D values had CV% of 8. Technical recommendations are presented to improve the analytical results for these elements with significant deviations from the mean values.

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