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

被引：0
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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
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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.
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页码：531 / 532
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