电感耦合等离子体质谱法测定亚磷酸中铬

Determination of chromium in phosphorous acid by ICP-MS

研究了利用电感耦合等离子体质谱法(ICP-MS)测定亚磷酸中铬的方法,检出限为2μg/kg,精密度RSD<3%,回收率90%~105%。该法简单快速、准确灵敏,能对亚磷酸中铬的进行准确测定。

In this study,a method for the determination of chromium(Cr)in phosphorous acid samples was established using by inductively coupled plasma mass spectrometry(ICP-MS).The limit of detection(LOD)was 2.5μg/kg,with RSD<3%,and the recoveries were in the range of 90%−105%.The method is simple,rapid,accurate and sensitive.The method can be used for accurate determination of chromium in phosphorous acid by ICP-MS.