HPLC-ICP-MS联用技术应用于砷的形态分析

Speciation of Arsenic by High-performance Liquid Chromatography-Inductively Coupled Plasma Mass Spectrometry

建立了一种应用反相离子对高效液相色谱-电感耦合等离子体质谱(HPLC-ICP-MS)联用技术进行砷化合物形态分析的方法。用10mM的四丁基氢氧化铵(TBAH)溶液作为流动相,并用丙二酸调节pH值(pH=6.6),成功地分离了As(III)、As(v)、MMA、DMA四种砷化合物。

We have found a method for speciation of arsenic using high-performance liquid chromatography-inductively coupled plasma mass spectrometry(HPLC-ICP-MS).Finally, we achieve a complete separation of As(Ⅲ),As(Ⅴ), DMA, MMA by using 10mM TBAH as mobile phase and with malonic acid adjusting pH(pH=6.6).