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Determination of Arsenic in Fine Antimony by Atomic Fluorescence Spectrometry

Zhen-E Chen

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Abstract

A method for analyzing arsenic in fine antimony by hydride generation atomic fluorescence spectrometry was established.The sample was dissolved with aqua regia.Arsenic was determinated without chemical seperation in the medium by adding tartaric acid to inhibit the hydrolysis of antimony,adding thiourea-ascorbic acid to restore As(Ⅴ)to As(Ⅲ).The detection limit was 0.210 ng/mL for As.The relative standard deviation(RSD,n=11)was 2.58%.

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What this paper is about

A method for analyzing arsenic in fine antimony by hydride generation atomic fluorescence spectrometry was established.The sample was dissolved with aqua regia.Arsenic was determinated without chemical seperation in the medium by adding tartaric acid to inhibit the hydrolysis of antimony,adding thiourea-ascorbic acid to restore As(Ⅴ)to As(Ⅲ).The detection limit was 0.210 ng/mL for As.The relative standard deviation(RSD,n=11)was 2.58%.

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Available abstract

A method for analyzing arsenic in fine antimony by hydride generation atomic fluorescence spectrometry was established.The sample was dissolved with aqua regia.Arsenic was determinated without chemical seperation in the medium by adding tartaric acid to inhibit the hydrolysis of antimony,adding thiourea-ascorbic acid to restore As(Ⅴ)to As(Ⅲ).The detection limit was 0.210 ng/mL for As.The relative standard deviation(RSD,n=11)was 2.58%.

Key concepts: Antimony, Arsenic, Aqua regia, Tartaric acid, Chemistry, Hydride, Detection limit, Ascorbic acid

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