Inorganic selenium speciation using HPLC-ICP-hexapole collision/reaction cell-MS
Inorganic selenium speciation using HPLC-ICP-hexapole collision/reaction cell-MS
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使用 HPLC-ICP-六极杆碰撞/反应池-MS 进行无机硒形态分析
DOI：
10.1039/b108267c
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发表时间：
2002
影响因子：
3.4
通讯作者：
J. Mermet
中科院分区：
文献类型：
--
作者：
S. Mazáñ;N. Gilon;G. Crétier;J. Rocca;J. Mermet
采用多孔石墨碳固定相和甲酸为洗脱液的色谱分离方法分离无机硒阴离子Se（IV）和Se（VI）。使用ICP-MS仪器进行检测，该仪器配备了筛选火炬和碰撞/反应池。研究了用氦、二氧化二氮和氢作为碰撞气体来提高硒的检测。对不同配置的检测系统的检出限进行了比较。氢气对Se（IV）和Se（VI）的检出限分别为12和24 ng L−1，结果最好。
A chromatographic separation procedure based on the use of a porous graphitic carbon stationary phase and formic acid as eluent was employed to separate Se(IV) and Se(VI), inorganic selenium anions. Detection was performed by using an ICP-MS instrument equipped with a screened torch and a collision/reaction cell. The use of helium, dinitrogen oxide and hydrogen as collision gases was studied to improve selenium detection. The different configurations of the detection system were compared in terms of detection limits. Hydrogen gave the best results with detection limits of 12 and 24 ng L−1 for Se(IV) and Se(VI), respectively.