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DETERMINATION OF TRACE GOLD IN SILVER NITRATE BY GRAPHITE FURNACE ATOMIC ABSORPTION SPECTROMETRY

Han Lu

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Abstract

Trace gold in AgNO3 was separated from main element Ag with 2 mol/L HC1 as a precipitant. After filtering, Au3+ in the solution was extracted with 6ml 55% TBP-CHCl3 and was determined by graphite furnace atomic absorption spectrometry. The method is convenient and sensitive. The recovery and relative standard deviation are 95-105% and 15%, respectively.

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What this paper is about

Trace gold in AgNO3 was separated from main element Ag with 2 mol/L HC1 as a precipitant. After filtering, Au3+ in the solution was extracted with 6ml 55% TBP-CHCl3 and was determined by graphite furnace atomic absorption spectrometry. The method is convenient and sensitive. The recovery and relative standard deviation are 95-105% and 15%, respectively.

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Available abstract

Trace gold in AgNO3 was separated from main element Ag with 2 mol/L HC1 as a precipitant. After filtering, Au3+ in the solution was extracted with 6ml 55% TBP-CHCl3 and was determined by graphite furnace atomic absorption spectrometry. The method is convenient and sensitive. The recovery and relative standard deviation are 95-105% and 15%, respectively.

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

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