Sequential Injection Vapor Generation Atomic Absorption Spectrometric Determination of Mercury and Arsenic

被引：0

作者：

Ma, Hongbing ^{[1
]}

Xu, Shukun ^{[1
]}

Zhou, Huanying ^{[1
]}

Wang, Shili ^{[1
]}

Fang, Zhaolun ^{[1
]}

机构：

[1] Box 332, Res. Center for Analytical Sciences, Northeastern University, 110006 Shenyang, China

来源：

Guang Pu Xue Yu Guang Pu Fen Xi/Spectroscopy and Spectral Analysis | 2000年 / 20卷 / 04期

关键词：

D O I：

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学科分类号：

摘要：

A sequential injection vapor generation atomic absorption spectrometric (SI-VGAAS) method for the determination of mercury and arsenic was developed, characterized by reagent merging using a double-syringe pump and a multi-position selector valve. A sample throughput of 120 h-1 was achieved with 500 μL sample with a precision of 2.2% for mercury at 8.0 μg·L-1 ( n = 11 ) and 1.4% for arsenic at 6.0 μg·L-1 ( n = 11 ) levels and a detection limit of 0.15 μg·L-1 for mercury and 0.07 μg·L-1 for arsenic. The method was applied to the analysis of geochemical standard reference material GSS-5, and good agreement with the certified values were obtained.

引用

页码：531 / 532

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