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Lan G, Li X, Jia H, Yu X, Wang Z, Yao J, Mao X. Fast and Sensitive Determination of Cadmium and Selenium in Rice by Direct Sampling Electrothermal Vaporization Inductively Coupled Plasma Mass Spectrometry. Molecules 2022; 27:molecules27238176. [PMID: 36500268 PMCID: PMC9739379 DOI: 10.3390/molecules27238176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 11/16/2022] [Accepted: 11/18/2022] [Indexed: 11/25/2022] Open
Abstract
In this work, a direct solid sampling device based on modified graphite furnace electrothermal vaporization (GF-ETV) with inductively coupled plasma mass spectrometry (ICP-MS) was established for the simultaneous detection of trace selenium and cadmium in rice samples. A bypass gas was first designed in GF-ETV to improve the device’s analytical sensitivity and precision. The ashing and vaporization conditions, the flow rates of the Ar carrier and the bypass gases of ICP-MS were all investigated. Under the optimized conditions, the limits of detection (LODs) for Se and Cd were 0.5 μg kg−1 and 0.16 μg kg−1, respectively; the relative standard deviations (RSDs) of repeated measurements were within 8% (n = 6). The recoveries of Cd and Se in rice samples were in the range of 89−112% compared with the microwave digestion ICP-MS method, indicating good accuracy and precision for the simultaneous detection of Se and Cd in rice matrix. The whole analysis time is <3 min without the sample digestion process, fulfilling the fast detection of Se and Cd in rice samples to protect food safety.
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Affiliation(s)
- Guanyu Lan
- Key Lab of National Soybean Industry Technology System, School of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, China
- Institute of Quality Standard & Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-Food Safety and Quality, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
- Hangzhou Puyu Technology Co., Ltd., Hangzhou 311300, China
| | - Xue Li
- Institute of Quality Standard & Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-Food Safety and Quality, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Hongyu Jia
- Key Lab of National Soybean Industry Technology System, School of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, China
- Institute of Quality Standard & Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-Food Safety and Quality, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Xiaofeng Yu
- Hangzhou Puyu Technology Co., Ltd., Hangzhou 311300, China
| | - Zhaohui Wang
- Key Lab of National Soybean Industry Technology System, School of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, China
- Correspondence: (Z.W.); (J.Y.); or (X.M.)
| | - Jijun Yao
- Hangzhou Puyu Technology Co., Ltd., Hangzhou 311300, China
- Correspondence: (Z.W.); (J.Y.); or (X.M.)
| | - Xuefei Mao
- Institute of Quality Standard & Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-Food Safety and Quality, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
- Correspondence: (Z.W.); (J.Y.); or (X.M.)
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Determination of trace cadmium in seawater using combination of polystyrene coated magnetic nanoparticles based DSPE and triethylamine assisted Mg(OH)2 method. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Mdluli NS, Nomngongo PN, Mketo N. A Critical Review on Application of Extraction Methods Prior to Spectrometric Determination of Trace-Metals in Oily Matrices. Crit Rev Anal Chem 2020; 52:1-18. [DOI: 10.1080/10408347.2020.1781591] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Njabulo S. Mdluli
- Department of Chemistry, College of Science and Engineering and Technology, University of South Africa, Johannesburg, South Africa
| | - Philiswa N. Nomngongo
- Department of Chemical Sciences, University of Johannesburg, Johannesburg, South Africa
| | - Nomvano Mketo
- Department of Chemistry, College of Science and Engineering and Technology, University of South Africa, Johannesburg, South Africa
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