ZHANG Jing,CAO Guo-dong,WANG Wei,QIAO Han,DAI Qing-yuan,CAI Zong-wei.Determination of Emerging Contaminants of p-Phenylenediamine Quinones in Human Urine Samples by UPLC-HRMS[J].Journal of Instrumental Analysis,2024,43(08):1197-1203.
ZHANG Jing,CAO Guo-dong,WANG Wei,QIAO Han,DAI Qing-yuan,CAI Zong-wei.Determination of Emerging Contaminants of p-Phenylenediamine Quinones in Human Urine Samples by UPLC-HRMS[J].Journal of Instrumental Analysis,2024,43(08):1197-1203. DOI: 10.12452/j.fxcsxb.24052991.
Determination of Emerging Contaminants of p-Phenylenediamine Quinones in Human Urine Samples by UPLC-HRMS
A liquid-liquid extraction based ultra-high performance liquid chromatography-high resolution mass spectrometry(UPLC-HRMS) method was developed for the determination of 5 emerging contaminants of
p
-phenylenediamine quinones(PPD-Qs) in human urine. The process of sample pretreatment and parameters of both chromatography and mass spectrometry were optimized in detail. Using 6PPD-Q-D
5
as an internal standard,the method established in this study had a good linear relationship in the range of 0.01-50 ng/mL,whereas the linear correlation coefficients were greater than 0.999,and the detection limits of the method(LODs) were as low as 2.4-7.5 pg/mL. The matrix effects of the
five PPD-Qs in urine samples were detected at 81.3%-110%. The average recoveries were 80.5%-114%,and intra-day and inter-day relative standard deviations(RSDs) were less than 11%. The method was applied to the determination of 5 PPD-Qs in human urine samples,and the mean concentrations of 5 PPD-Qs ranged from 0.04 ng/mL to 1.06 ng/mL. The method in our study has the advantages of simple operation,high sensitivity,and good repeatability,which is suitable for the determination of PPD-Qs in human urine.