SC-CE-ICP-MS应用于锑的快速形态分析
Probing Interactions of Antimony Species with DNA by Short Column Capillary Electrophoresis Coupled with Inductively Coupled Plasma Mass Spectrometry
有证据显示，锑与砷具有相似的化学和毒物学性质，它的毒性会在生物体内累积。本工作建立了一种基于可拆卸接口的SC-CE-ICP-MS联用技术应用于锑的快速形态分析在1 min 内分离了SbIII和SbV两种形态。采用30 mM NH4Ac+50 mM Tris (pH 8.0)为缓冲液，16 kV分离电压，16 cm × 50μm I.D.毛细管，SbIII和SbV迁移时间、峰高和峰面积的相对标准偏差(RSD, n = 5)分别为1.1% ~1.6%，2.3% ~2.7%和2.5% ~2.9%；SbIII和SbV检测限(3σ)分别是0.12 μg L-1和0.15 μg L-1.
In this paper a rapid method for speciation analysis of SbIII和SbV was developed by SC-CE-ICP-MS based on a MicoMist nebulizer and a removable interface. SbIII和SbV were separated in 1 min by CE in a 16 cm × 75 μm I. D. fused silica capillary at 21 kV. A mixture of 30 mM NH4Ac and 50 mM Tris (pH 8.0) was buffer solution. The precisions (RSD, n = 5) of migration time, peak height and peak area for the two inorganic antimony species in the ranges of 1.1% ~1.6%，2.3% ~2.7% and 2.5% ~2.9%, respectively. The limits of detection (3σ) of SbIII和SbV were 0.12 μg L-1 and 0.15 μg L-1, respectively.
李妍、江焱
化学
联用技术毛细管电泳短柱电感耦合等离子体质谱锑形态分析
hyphenated techniquecapillary electrophoresisshort columninductively coupled plasma mass spectrometryantimony speciation
李妍,江焱.SC-CE-ICP-MS应用于锑的快速形态分析[EB/OL].(2011-01-10)[2025-08-23].http://www.paper.edu.cn/releasepaper/content/201101-377.点此复制
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