PMID- 34074374 OWN - NLM STAT- MEDLINE DCOM- 20210603 LR - 20210603 IS - 1000-8020 (Print) IS - 1000-8020 (Linking) VI - 50 IP - 3 DP - 2021 May TI - [Determination of trace low molecular mass aldehydes in air by ultra-fast liquid chromatography-tandem mass spectrometry]. PG - 488-494 LID - 10.19813/j.cnki.weishengyanjiu.2021.03.024 [doi] AB - OBJECTIVE: To establish a rapid and accurate method for the determination of trace acetaldehyde, acrolein, methacrylaldehyde, crotonaldehyde in the air by ultra-fast liquid chromatography-tandem mass spectrometry(UFLC-MS/MS). METHODS: The air sample was concentrated and derivatived by 3-methyl-2(3 H)-benzothiazolonhydrazone(MBTH), and the effect of derivative conditions including the concentration of MBTH, the pH, the derivative time and temperature was investigated. The stability of derivatives, the cracking mechanism of mass spectrometry, the matrix effect of the method and air sampling efficiency were studied. The chromatographic separation was carried out on a Shim-pack XR-ODS II column(100 mmx2. 0 mm, 2. 2 mum) by using water/methanol solution as the mobile phase with the gradient elution. Detection was performed in positive multi-reaction monitoring(MRM) mode for quantification by using external standard method. RESULTS: The four analytes showed good linear relationship within the range of 1. 00-100 mug/L(calculated by aldehyde) with a correlation coefficient r>/=0. 9990. The limits of quantitation(LOQs) of the method(concentrated with 10 L air) were 0. 5 mug/m~3 in air, for acetaldehyde, acrolein, methacrylaldehyde, crotonaldehyde. The recoveries of the method were 90. 6%-97. 8% at the three spiked levels, and the relative standard deviations(RSDs) were between 1. 9%-6. 4%(n=6), the average sampling efficiency was between 91. 0%-97. 1%. CONCLUSION: The developed method is simple, less interference and specificity, and is suitable for the simultaneous rapid determination of trace acetaldehyde, acrolein, methacrylaldehyde, crotonaldehyde in air of work place. FAU - Chen, Xiaohong AU - Chen X AD - Key Laboratory of Health Risk Appraisal for Trace Toxic Chemicals of Zhejiang Province, Ningbo Municipal Center for Disease Control and Prevention, Ningbo 315010, China. FAU - Zhang, Yu AU - Zhang Y AD - School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China. FAU - Shi, Yuejin AU - Shi Y AD - School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China. FAU - Cai, Meiqiang AU - Cai M AD - School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China. FAU - Jin, Micong AU - Jin M AD - Key Laboratory of Health Risk Appraisal for Trace Toxic Chemicals of Zhejiang Province, Ningbo Municipal Center for Disease Control and Prevention, Ningbo 315010, China. LA - chi PT - Journal Article PL - China TA - Wei Sheng Yan Jiu JT - Wei sheng yan jiu = Journal of hygiene research JID - 9426367 RN - 0 (Aldehydes) SB - IM MH - *Aldehydes MH - Chromatography, High Pressure Liquid MH - Chromatography, Liquid MH - *Tandem Mass Spectrometry OTO - NOTNLM OT - acetaldehyde OT - acrolein OT - air OT - crotonaldehyde OT - methacrylaldehyde OT - ultra-fast liquid chromatography-tandem mass spectrometry OT - work place EDAT- 2021/06/03 06:00 MHDA- 2021/06/04 06:00 CRDT- 2021/06/02 05:41 PHST- 2021/06/02 05:41 [entrez] PHST- 2021/06/03 06:00 [pubmed] PHST- 2021/06/04 06:00 [medline] AID - 10.19813/j.cnki.weishengyanjiu.2021.03.024 [doi] PST - ppublish SO - Wei Sheng Yan Jiu. 2021 May;50(3):488-494. doi: 10.19813/j.cnki.weishengyanjiu.2021.03.024.