文献类型：期刊文献

英文题名：Simultaneous Determination of Arsenic and Lead in Vegetable Oil by Atomic Fluorescence Spectrometry after Vortex-Assisted Extraction

作者：Ni, Zhanglin[1] Chen, Zhenchao[1] Cheng, Junyong[2] Tang, Fubin[1]

第一作者：倪张林

通信作者：Tang, FB[1]

机构：[1]Chinese Acad Forestry, Qual Testing Ctr Nonwood Forest Prod, State Forestry Adm Hangzhou, Res Inst Subtrop Forestry, Fuyang, Zhejiang, Peoples R China;[2]Hubei Acad Forestry, Nonwood Foresty Inst, Wuhan, Hubei, Peoples R China

年份：2017

卷号：50

期号：13

起止页码：2129-2138

外文期刊名：ANALYTICAL LETTERS

收录：;Scopus(收录号：2-s2.0-85028562366);WOS:【SCI-EXPANDED(收录号:WOS:000413970600008)】；

基金：This work was supported by the Special Fund for Forestry Scientific Research in the Public Interest (201304705).

语种：英文

外文关键词：Arsenic; hydride generation atomic fluorescence spectrometry; lead; vortex-assisted extraction

摘要：Hydride generation atomic fluorescence spectrometry (HG-AFS) is used for the determination of hydride-forming elements due to its high sensitivity, simplicity, and low cost. A new HG-AFS method for the simultaneous determination of arsenic and lead in vegetable oil is reported. Vortex-assisted extraction with dilute nitric acid was used to isolate arsenic and lead from vegetable oil. The conditions influencing the fluorescence signal, including the carrier fluid, oxidizing agent, and reducing agent, were optimized. The interferences of coexisting ions were also evaluated. Under the optimized conditions, the limits of detection were 0.6 and 0.4 mu gkg(-1) for arsenic and lead. The recoveries were from 84.4 to 105% for both metals in vegetable oil. The optimized method was used for the determination of arsenic and lead in commercial vegetable oil. The analytical results by this approach were in good agreement with values obtained by inductively coupled plasma mass spectrometry with microwave digestion.