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DETERMINATION OF TRACE SILVER IN GEOCHEMICAL SAMPLES BY GRAPHITE FURNACE ATOMIC ABSORPTION SPECTROMETRY

Hua Li

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Abstract

Taking (NH 4) 2HPO 4 as a matrix modifier,a method for determination of trace silver in geochemical samples by Zeeman graphite furnace atomic absorption spectrometry was studied.The proposed method simplified the procedure for sample processing.Satisfactory results were obtained in determination of trace silver in geochemical reference and practical samples.The recovery was in the range of 91.2%～99.8% while the relative standard deviation was in the range of 6 5%～7 7%.The proposed method is quick,simple and accurate.

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What this paper is about

Taking (NH 4) 2HPO 4 as a matrix modifier,a method for determination of trace silver in geochemical samples by Zeeman graphite furnace atomic absorption spectrometry was studied.The proposed method simplified the procedure for sample processing.Satisfactory results were obtained in determination of trace silver in geochemical reference and practical samples.The recovery was in the range of 91.2%～99.8% while the relative standard deviation was in the range of 6 5%～7 7%.The proposed method is quick,simple and accurate.

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Available abstract

Taking (NH 4) 2HPO 4 as a matrix modifier,a method for determination of trace silver in geochemical samples by Zeeman graphite furnace atomic absorption spectrometry was studied.The proposed method simplified the procedure for sample processing.Satisfactory results were obtained in determination of trace silver in geochemical reference and practical samples.The recovery was in the range of 91.2%～99.8% while the relative standard deviation was in the range of 6 5%～7 7%.The proposed method is quick,simple and accurate.

Key concepts: Graphite furnace atomic absorption, Atomic absorption spectroscopy, Relative standard deviation, Matrix (chemical analysis), Analytical Chemistry (journal), Mass spectrometry, Chemistry, Graphite

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DETERMINATION OF TRACE SILVER IN GEOCHEMICAL SAMPLES BY GRAPHITE FURNACE ATOMIC ABSORPTION SPECTROMETRY — Research Paper | ScholarLens