PMID- 37351193 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20230701 IS - 2296-861X (Print) IS - 2296-861X (Electronic) IS - 2296-861X (Linking) VI - 10 DP - 2023 TI - Rapid and sensitive determination of Se and heavy metals in foods using electrothermal vaporization inductively coupled plasma mass spectrometry with a novel transportation system. PG - 1201801 LID - 10.3389/fnut.2023.1201801 [doi] LID - 1201801 AB - Rapid, sensitive and simultaneous determination of trace multi-elements in various plant food samples such as grain, oilseed, vegetable and tea is always a challenge thus far. In this work, a rapid determination method for Se, Cd, As and Pb in food samples by inductively coupled plasma mass spectrometry (ICP-MS) using slurry sampling electrothermal vaporization (SS-ETV) was developed. To improve the analytical sensitivity and precision as well as eliminate the memory effect, a gas turbulator line and signal delay device (SDD) were for the first time designed for the graphite furnace (GF) ETV coupled with ICP-MS. The signal acquisition parameters of ICP-MS, ashing and vaporization conditions, and the flow rates of carrier gas and gas turbulator were investigated for Se, Cd, As and Pb in food samples. Under the optimized conditions, the limits of determination (LODs) for Se, Cd, As and Pb were 0.5 ng g(-1), 0.3 ng g(-1), 0.3 ng g(-1) and 0.6 ng g(-1), respectively; the limits of quantification (LOQs) for Se, Cd, As and Pb were 1.7 ng g(-1), 1.0 ng g(-1), 1.0 ng g(-1) and 1.9 ng g(-1), respectively; linearity (R(2)) in the range of 1 to 4,000 ng g(-1) was >0.999 using the standard addition method. This method was used to analyze 5 CRMs including rice, tea and soybeans, and the concentrations detected by this method were within the range of the certified values. The recoveries of Se, Cd, As and Pb in plant food matrices including grain, oilseed, celery, spinach, carrot and tea samples were 86-118% compared to the microwave digestion ICP-MS method; and the relative standard deviations (RSDs) were 1.2-8.9% for real food sample analysis, proving a good precision and accuracy for the simultaneous determination of multi-elements. The analysis time was less than 3 min, slurry preparation time < 5 min without sample digestion process. The proposed direct slurry sampling ICP-MS method is thus suitable for rapid and sensitive determination of Se, Cd, As and Pb in food samples with advantages such as simplicity, green and safety, as well as with a promising application potential in detecting more elements to protect food safety and human health. CI - Copyright (c) 2023 Lan, Li, Yao, Yu, Liu, Qiu and Mao. FAU - Lan, Guanyu AU - Lan G AD - Institute of Agricultural Product Quality Standard and Testing Research, Tibet Academy of Agricultural and Animal Husbandry Sciences, Lhasa, Tibet, China. AD - Institute of Quality Standard and Testing Technology for Agro-Products, Key Laboratory of Agro-food Safety and Quality, Ministry of Agriculture and Rural Affairs, Chinese Academy of Agricultural Sciences, Beijing, China. FAU - Li, Xue AU - Li X AD - Institute of Quality Standard and Testing Technology for Agro-Products, Key Laboratory of Agro-food Safety and Quality, Ministry of Agriculture and Rural Affairs, Chinese Academy of Agricultural Sciences, Beijing, China. FAU - Yao, Jijun AU - Yao J AD - Hangzhou Puyu Technology Co. Ltd., Hangzhou, Zhejiang, China. FAU - Yu, Xiaofeng AU - Yu X AD - Hangzhou Puyu Technology Co. Ltd., Hangzhou, Zhejiang, China. FAU - Liu, Qinghai AU - Liu Q AD - Institute of Agricultural Product Quality Standard and Testing Research, Tibet Academy of Agricultural and Animal Husbandry Sciences, Lhasa, Tibet, China. FAU - Qiu, Cheng AU - Qiu C AD - Institute of Agricultural Product Quality Standard and Testing Research, Tibet Academy of Agricultural and Animal Husbandry Sciences, Lhasa, Tibet, China. FAU - Mao, Xuefei AU - Mao X AD - Institute of Quality Standard and Testing Technology for Agro-Products, Key Laboratory of Agro-food Safety and Quality, Ministry of Agriculture and Rural Affairs, Chinese Academy of Agricultural Sciences, Beijing, China. LA - eng PT - Journal Article DEP - 20230607 PL - Switzerland TA - Front Nutr JT - Frontiers in nutrition JID - 101642264 PMC - PMC10282127 OTO - NOTNLM OT - electrothermal vaporization OT - heavy metals OT - inductively coupled plasma mass spectrometry OT - selenium OT - signal delay device OT - slurry sampling COIS- JY and XY were employed by Hangzhou Puyu Technology Co. Ltd. The remaining authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. EDAT- 2023/06/23 13:07 MHDA- 2023/06/23 13:08 PMCR- 2023/01/01 CRDT- 2023/06/23 10:30 PHST- 2023/04/07 00:00 [received] PHST- 2023/05/19 00:00 [accepted] PHST- 2023/06/23 13:08 [medline] PHST- 2023/06/23 13:07 [pubmed] PHST- 2023/06/23 10:30 [entrez] PHST- 2023/01/01 00:00 [pmc-release] AID - 10.3389/fnut.2023.1201801 [doi] PST - epublish SO - Front Nutr. 2023 Jun 7;10:1201801. doi: 10.3389/fnut.2023.1201801. eCollection 2023.