PMID- 33872132 OWN - NLM STAT- MEDLINE DCOM- 20210920 LR - 20210920 IS - 1944-0057 (Electronic) IS - 1944-0057 (Linking) VI - 38 IP - 6 DP - 2021 Jun TI - Determination of semicarbazide residue in human urine samples using liquid chromatography-tandem mass spectrometry. PG - 922-930 LID - 10.1080/19440049.2021.1898678 [doi] AB - An ultra-performance liquid chromatography coupled with electrospray ionisation tandem mass spectrometry (UPLC-ESI-MS/MS) with pre-column derivatisation was developed and validated for the determination of semicarbazide in human urine. Urine samples were derivatised with 2-nitrobenzaldehyde and subsequently extracted with acetonitrile. Extracts were concentrated and then analysed by UPLC-MS/MS. The time per run was 7 min. Good results were observed for the linearity of matrix-matched calibration curves (R(2) > 0.99) in the concentration range of 1-100 microg/L. The absolute recovery ranged from 98.7% to 108.6%, with the relative standard deviations (RSDs) of 2.2%-3.6%. The limit of detection and quantification for the semicarbazide was 0.5 microg/L and 1 microg/L, respectively. The method showed good extraction efficiency, high sensitivity, and good reproducibility. It was suitable for the detection of semicarbazide in human urine. Residues of semicarbazide were between 1.0 and 41.5 mug/L in children's 24-h urine. This work is the first report on the quantitative analysis of SEM in 24-h human urine samples. FAU - Yang, Huamei AU - Yang H AD - Taizhou Center for Disease Prevention and Control, Taizhou, China. FAU - Jiang, Xiaoli AU - Jiang X AD - Taizhou Center for Disease Prevention and Control, Taizhou, China. FAU - Wang, Yanli AU - Wang Y AD - Nanjing Center for Disease Prevention and Control, Nanjing, China. FAU - Li, Chen AU - Li C AD - Taizhou Center for Disease Prevention and Control, Taizhou, China. FAU - Hang, Li AU - Hang L AD - Taizhou Center for Disease Prevention and Control, Taizhou, China. FAU - Huang, Weihong AU - Huang W AD - Taizhou Center for Disease Prevention and Control, Taizhou, China. LA - eng PT - Journal Article DEP - 20210419 PL - England TA - Food Addit Contam Part A Chem Anal Control Expo Risk Assess JT - Food additives & contaminants. Part A, Chemistry, analysis, control, exposure & risk assessment JID - 101485040 RN - 0 (Acetonitriles) RN - 0 (Benzaldehydes) RN - 0 (Semicarbazides) RN - 48B18Q9B8E (2-nitrobenzaldehyde) RN - Z072SB282N (acetonitrile) SB - IM MH - Acetonitriles/chemistry MH - Benzaldehydes/chemistry MH - Biosensing Techniques MH - Child MH - Child, Preschool MH - China MH - Chromatography, High Pressure Liquid MH - Female MH - Humans MH - Limit of Detection MH - Male MH - Reproducibility of Results MH - Semicarbazides/*isolation & purification/*urine MH - Sensitivity and Specificity MH - Tandem Mass Spectrometry OTO - NOTNLM OT - 2-nitrobenzaldehyde OT - LC-MS/MS OT - Semicarbazide OT - derivatisation OT - urine samples EDAT- 2021/04/20 06:00 MHDA- 2021/09/21 06:00 CRDT- 2021/04/19 17:17 PHST- 2021/04/20 06:00 [pubmed] PHST- 2021/09/21 06:00 [medline] PHST- 2021/04/19 17:17 [entrez] AID - 10.1080/19440049.2021.1898678 [doi] PST - ppublish SO - Food Addit Contam Part A Chem Anal Control Expo Risk Assess. 2021 Jun;38(6):922-930. doi: 10.1080/19440049.2021.1898678. Epub 2021 Apr 19.