An ionic liquid improved HPLC-ICP-MS method for simultaneous determination of arsenic and selenium species in animal/plant-derived foodstuffs

作者：Fang, Guozhen^*; Lv, Qinghui; Liu, Cuicui; Huo, Miaomiao; Wang, Shuo

来源：Analytical Methods, 2015, 7(20): 8617-8625.

DOI：10.1039/c5ay02021b

• INDUCTIVELY-COUPLED PLASMA
• ASSISTED ENZYMATIC EXTRACTION
• MASS SPECTROMETRY DETECTION
• SOLID-PHASE EXTRACTION
• SIMULTANEOUS SPECIATION
• CHROMATOGRAPHY SEPARATION
• HEALTH
• ADDITIVES
• TISSUES
• URINE

Speciation analysis of arsenic (As) and selenium (Se) in foods is of great significance for human health. In this paper, a novel ionic liquid improved reversed phase high performance liquid chromatography (RP-HPLC) coupled with inductively coupled plasma mass spectrometry (ICP-MS) method was developed for the simultaneous determination of six As species and four Se species. To enhance the detection sensitivity, the RP-HPLC-ICP-MS determination conditions were systematically optimized. Under the optimal conditions, good linearity ranging from 2.5 to 400 mu g L-1 was obtained. The limits of detection (LODs) were 0.34-0.86 mu g L-1 for the As species and 0.94-1.52 mu g L-1 for the Se species. The recoveries of the As and Se species in animal/plant-derived samples (pork, chicken, rice and wheat) were in the range of 71.5-107.5% and 70.2-123.4%, respectively. These results demonstrated that the current method is promising for the accurate quantification of the As and Se species in foods.

• 出版日期2015
• 单位天津科技大学