Simultaneous Determination of Arsenic and Antimony Released from Enamel and Glass Cookwares by Atomic Fluorescence Spectrometry

doi:10.7506/spkx1002-6630-201224052

FOOD SCIENCE ›› 2012, Vol. 33 ›› Issue (24): 249-252.doi: 10.7506/spkx1002-6630-201224052

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Simultaneous Determination of Arsenic and Antimony Released from Enamel and Glass Cookwares by Atomic Fluorescence Spectrometry

LIU Zheng-hua，CHEN Xin-huan，XIAO Jia-yong，CHEN Lian，Lü Xiao-yuan，YANG Wan-biao

Hunan Entry-Exit Inspection and Quarantine Bureau, Changsha 410004, China

Received:2011-10-18 Revised:2012-11-20 Online:2012-12-25 Published:2012-12-12

Abstract

Abstract: A sensitive, accurate and simple method for the simultaneous determination of arsenic and antimony released from enamel and glass cookwares were established using atomic fluorescence spectrometry (AFS). With the aim of finding optimal conditions for the determination of arsenic and antimony, we investigated the effects of acid medium type and reductant dosage on fluorescence intensity. Under optimized conditions, this method showed excellent linear relationship between fluorescence intensity and concentration within the range of 0–80 ng/mL with correlation coefficients of 0.9995 and 0.9998 for arsenic and antimony, respectively. The limits of detection for arsenic and antimony were 0.04 ng/mL and 0.07 ng/mL, respectively. Spike recoveries of arsenic and antimony ranged from 94.0% to 104.0% and from 98.0% to 106.0%, respectively. The precision RSDs for 6 replicate determinations of arsenic and antimony were 3.6% and 2.7%, respectively.

Key words: atomic fluorescence spectrometry (AFS), arsenic, antimony, enamel cookware, glass cookware

CLC Number:

TS206

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Simultaneous Determination of Arsenic and Antimony Released from Enamel and Glass Cookwares by Atomic Fluorescence Spectrometry

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