A novel approach for simultaneous analysis of perchlorate (ClO4- ) and bromate (BrO3- ) in fruits and vegetables using modified QuEChERS combined with ultrahigh performance liquid chromatography-tandem mass spectrometry

Food Chemistry
Hao DongLiang Zhu

Abstract

Perchlorate (ClO4-) and bromate (BrO3-) are mainly determined by ion chromatography methods. The present work aims to develop a modified QuEChERS combined with ultrahigh performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) method for simultaneous analysis of ClO4- and BrO3- in fruits and vegetables including cherry tomato, strawberry, tomato, potato, lettuce and pakchoi. Two target inorganic anions were separated on a Diamonsil C18(2) column by gradient elution, scanned in ESI negative mode and detected under multiple reactions monitoring (MRM). Limit of detection (LOD) and method limit of quantification (MLOQ), matrix effect, accuracy and precision of the developed method were investigated. Results were linear in their concentration ranges, with coefficients of determination (r2) bigger than 0.999. LODs for ClO4- and BrO3- were 0.1 μg/L and 0.5 μg/L, respectively. The validated method provided sufficient selectivity, sensitivity and accuracy to screen for ClO4- and BrO3- with ignorable matrix effects. Recoveries for different kinds of negative samples at 3 spiked levels were between 82.0% and 99.5%. Both intraday-precision and interday-precision were satisfactory, showing RSDr values in the range of 2.1-7.1%...Continue Reading

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Citations

Jul 6, 2019·Journal of Separation Science·Mingrong QianZuguang Li
Oct 12, 2018·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Żaneta BargańskaJacek Namieśnik
Mar 2, 2019·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Alaa KhedrAhmed K Kammoun
Dec 9, 2020·Analytical Methods : Advancing Methods and Applications·Xiuzhen YinShuyan Niu
Mar 2, 2021·Journal of the Science of Food and Agriculture·Zebron Nchimunya Tembo, Seker Fatma Aygun
Jul 5, 2021·Marine Pollution Bulletin·Yining ChenShaoyou Lu

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