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2008•Journal of environmental healthRequires access

Determination of Antimony in Urine by Graphite Furnace Atomic Absorption Spectrometry

Gao Shou-qua

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Abstract

Objective To develop a method to determine antimony in the urine by graphite atomic absorption spectrometry. Methods According to the requirement of the guideline (WS/T68-1996), the condition of the determination of antimony in the urine by graphite furnace atomic absorption spectrometry was studied. Results Mg(NO3)2 was used as the matrix modifier, there was a significant linear relation between absorbance and antimony level in the range of 0-100 μg/L (r0.999 0), the detection limit was 3.0 ng/L, the recovery rates were 97%-100%, the relative standard deviation (RSD) was less than 1.9%. Conclusion This method is characterized by convenient procedure, good sensitivity and satisfactory accuracy and is applicable to determination of antimony in the urine.

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What this paper is about

Objective To develop a method to determine antimony in the urine by graphite atomic absorption spectrometry. Methods According to the requirement of the guideline (WS/T68-1996), the condition of the determination of antimony in the urine by graphite furnace atomic absorption spectrometry was studied. Results Mg(NO3)2 was used as the matrix modifier, there was a significant linear relation between absorbance and antimony level in the range of 0-100 μg/L (r0.999 0), the detection limit was 3.0 ng/L, the recovery rates were 97%-100%, the relative standard deviation (RSD) was less than 1.9%. Conclusion This method is characterized by convenient procedure, good sensitivity and satisfactory accuracy and is applicable to determination of antimony in the urine.

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Available abstract

Objective To develop a method to determine antimony in the urine by graphite atomic absorption spectrometry. Methods According to the requirement of the guideline (WS/T68-1996), the condition of the determination of antimony in the urine by graphite furnace atomic absorption spectrometry was studied. Results Mg(NO3)2 was used as the matrix modifier, there was a significant linear relation between absorbance and antimony level in the range of 0-100 μg/L (r0.999 0), the detection limit was 3.0 ng/L, the recovery rates were 97%-100%, the relative standard deviation (RSD) was less than 1.9%. Conclusion This method is characterized by convenient procedure, good sensitivity and satisfactory accuracy and is applicable to determination of antimony in the urine.

Key concepts: Antimony, Graphite furnace atomic absorption, Detection limit, Atomic absorption spectroscopy, Chemistry, Urine, Absorbance, Graphite

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