| Title: | "Simultaneous determination of arsenic, cadmium and lead in plant foods by ICP-MS combined with automated focused infrared ashing and cold trap" |
| Author(s): | Zhang N; Shen K; Yang X; Li Z; Zhou T; Zhang Y; Sheng Q; Zheng J; |
| Address: | "Institute of Analytical Science/Shaanxi Provincial Key Laboratory of Electroanalytical Chemistry, College of Chemistry and Materials Science, Northwest University, Xi'an 710069, China; Xi'an Northwest Geological Institute for Nonferrous Metals Co., Ltd., 25 Xiying Road, Xi'an 710054, China. Xi'an Northwest Geological Institute for Nonferrous Metals Co., Ltd., 25 Xiying Road, Xi'an 710054, China; Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an 710127, China. Xi'an Northwest Geological Institute for Nonferrous Metals Co., Ltd., 25 Xiying Road, Xi'an 710054, China; College of Chemistry and Chemical Engineering, Shaanxi University of Science & Technology, 6 Xuefu Road, Weiyang District, Xi'an 710021, China. Xi'an Northwest Geological Institute for Nonferrous Metals Co., Ltd., 25 Xiying Road, Xi'an 710054, China. College of Food Science and Engineering, Northwest University, Xi'an 710069, China. Institute of Analytical Science/Shaanxi Provincial Key Laboratory of Electroanalytical Chemistry, College of Chemistry and Materials Science, Northwest University, Xi'an 710069, China. Electronic address: zhengjb@nwu.edu.cn" |
| DOI: | 10.1016/j.foodchem.2018.05.058 |
| ISSN/ISBN: | 1873-7072 (Electronic) 0308-8146 (Linking) |
| Abstract: | "A fully automated focused infrared lightwave ashing sample preparation system was proposed and applied to the pretreatment of volatile arsenic, cadmium and lead in plant foods prior to inductively coupled plasma mass spectrometry (ICP-MS) determination. All the steps of ashing pretreatment were automatically accomplished within forty minutes. Gold-plated infrared quartz tubes produced focused infrared to supply a rapid heating. Ozone was used to accelerate sample carbonization. A cool trap was used to capture volatile arsenic, cadmium and lead. Three certified plant food reference materials were determined. The recoveries of the three elements were between 90% and 107%. Five real plant foods were analyzed by the proposed method and microwave digestion. The results showed no significant difference" |
| Keywords: | Arsenic/*analysis Cadmium/*analysis Food Analysis Lead/*analysis Mass Spectrometry/*methods Microwaves Oxidation-Reduction Ozone/chemistry Plants/*chemistry/metabolism Temperature Volatile Organic Compounds/chemistry Arsenic Automated infrared ashing Cadm; |
| Notes: | "MedlineZhang, Ni Shen, Kun Yang, Xiaoming Li, Zhongxi Zhou, Tuankun Zhang, Ying Sheng, Qinglin Zheng, Jianbin eng England 2018/06/02 Food Chem. 2018 Oct 30; 264:462-470. doi: 10.1016/j.foodchem.2018.05.058. Epub 2018 May 11" |
