PMID- 34213204 OWN - NLM STAT- MEDLINE DCOM- 20210726 LR - 20210726 IS - 1872-2059 (Electronic) IS - 1000-8713 (Linking) VI - 38 IP - 6 DP - 2020 Jun 8 TI - [Determination of polycyclic aromatic hydrocarbon metabolites in urine by liquid-liquid extraction-high resolution gas chromatography-high resolution dual-focus magnetic mass spectrometry]. PG - 715-721 LID - 10.3724/SP.J.1123.2019.10031 [doi] AB - A sensitive and accurate method was developed to quantify eight polycyclic aromatic hydrocarbon (PAH) metabolites in human urine by liquid-liquid extraction-high resolution gas chromatography-high resolution dual-focus magnetic mass spectrometry (LLC-HRGC-HRMS). About 2 mL urine was mixed with a deuterium- or (13)C-labeled isotopic internal standard, and the conjugated targets were enzymatically digested in the presence of ascorbic acid. The free compounds were extracted with toluene-pentane (1:4, v/v) and condensed to near dryness. Then, the target compounds were redissolved in toluene. After derivatization, they were separated and quantified by HRGC-HRMS. The linear ranges of the 1-hydroxynaphthalene, 1-hydroxyphenanthrene, and 2-hydroxyphenanthrene were 0.14-41.6 mug/L, 0.05-8.33 mug/L, and 0.04-8.33 mug/L, respectively, and those for the other five PAH metabolites were 0.02-8.33 mug/L. The correlation coefficients were greater than 0.99. The limits of detection were in the range of 0.006-0.042 mug/L, and the recoveries were 81.4%-127.0%. The intra-day and inter-day relative standard deviations (RSDs) were less than 6.9% and 10.9%, respectively. This method was utilized for the determination of 330 human urine samples. The results showed that 3-hydroxychrysene and 6-hydroxychrysene were not detected, and the detection rate of the other six PAH metabolites was 100%. This method is sensitive, accurate and stable, and it is suitable for the determination of the eight PAH metabolites in human urine. FAU - Fu, Hui AU - Fu H AD - National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing 100021, China. FAU - Lu, Yifu AU - Lu Y AD - National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing 100021, China. FAU - Hu, Xiaojian AU - Hu X AD - National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing 100021, China. FAU - Zhang, Xu AU - Zhang X AD - National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing 100021, China. FAU - Yang, Yanwei AU - Yang Y AD - National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing 100021, China. FAU - Zhu, Ying AU - Zhu Y AD - National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing 100021, China. LA - chi PT - Journal Article PL - China TA - Se Pu JT - Se pu = Chinese journal of chromatography JID - 9424804 RN - 0 (Polycyclic Aromatic Hydrocarbons) SB - IM MH - Gas Chromatography-Mass Spectrometry MH - Humans MH - Liquid-Liquid Extraction MH - Magnetic Phenomena MH - Polycyclic Aromatic Hydrocarbons/*urine OTO - NOTNLM OT - biological monitoring OT - high resolution gas chromatography-high resolution dual-focus magnetic mass spectrometry (HRGC-HRMS) OT - hydroxyl polycyclic aromatic metabolites OT - liquid-liquid extraction (LLE) OT - urine EDAT- 2021/07/03 06:00 MHDA- 2021/07/27 06:00 CRDT- 2021/07/02 09:12 PHST- 2021/07/02 09:12 [entrez] PHST- 2021/07/03 06:00 [pubmed] PHST- 2021/07/27 06:00 [medline] AID - 10.3724/SP.J.1123.2019.10031 [doi] PST - ppublish SO - Se Pu. 2020 Jun 8;38(6):715-721. doi: 10.3724/SP.J.1123.2019.10031.