PMID- 31401453 OWN - NLM STAT- MEDLINE DCOM- 20191230 LR - 20191230 IS - 1873-376X (Electronic) IS - 1570-0232 (Linking) VI - 1126-1127 DP - 2019 Sep 15 TI - Development a simple and rapid HPLC-ESI-Q-TOF/MS method for determination of short- and medium- chain chlorinated paraffins in human serum. PG - 121722 LID - S1570-0232(19)30522-7 [pii] LID - 10.1016/j.jchromb.2019.121722 [doi] AB - This study established a simple and rapid method for simultaneous determination of short-chain chlorinated paraffins (SCCPs) and medium-chain chlorinated paraffins (MCCPs) in human serum by high performance liquid chromatography coupled with electron spray ionization quadrupole time-of-flight mass spectrometry (HPLC-ESI-Q-TOF/MS). A simple pretreatment procedure of protein precipitation by acetonitrile coupled with liquid-liquid extraction by n-hexane was employed for extraction and purification. The purified samples were separated by a PFP chromatographic column. This method could effectively eliminate the matrix effect by lipids and other matrix substances in serum samples with less time and solvent consuming. 76 congener groups of SCCPs and MCCPs with C(10)-C(17) and Cl(5)-Cl(13) were quantified by their [M-H](-) ions. Method detection limit (MDL) were 1.0-8.0 ng mL(-1) for summation operatorSCCPs and summation operatorMCCPs. Recoveries were 98.4 +/- 4.42%, 98.8 +/- 3.96% and 90.7 +/- 2.79% for SCCPs and 93.1 +/- 6.67%, 108 +/- 1.21% and 90.8 +/- 3.78% for MCCPs at spiking concentrations of 20, 50 and 200 ng.mL(-1), respectively. The relative standard deviations (RSDs) of intra- and inter-day variations were 1.41% and 9.84% for SCCPs, and 4.23% and 6.26% for MCCPs. The suitability of the developed method was demonstrated through the application to analysis of SCCPs and MCCPs in human serum samples. CI - Copyright (c) 2019 Elsevier B.V. All rights reserved. FAU - Zhou, Xi AU - Zhou X AD - Guangdong Provincial Key Laboratory of Emergency Test for Dangerous Chemicals, Guangdong Provincial Public Laboratory of Analysis and Testing Technology, Guangdong Institute of Analysis, Guangzhou 510070, Guangdong, China. FAU - Wu, Huiqin AU - Wu H AD - Guangdong Provincial Key Laboratory of Emergency Test for Dangerous Chemicals, Guangdong Provincial Public Laboratory of Analysis and Testing Technology, Guangdong Institute of Analysis, Guangzhou 510070, Guangdong, China. Electronic address: 13802959756@139.com. FAU - Huang, Xiaolan AU - Huang X AD - Guangdong Provincial Key Laboratory of Emergency Test for Dangerous Chemicals, Guangdong Provincial Public Laboratory of Analysis and Testing Technology, Guangdong Institute of Analysis, Guangzhou 510070, Guangdong, China. FAU - Hang, Fang AU - Hang F AD - Guangdong Provincial Key Laboratory of Emergency Test for Dangerous Chemicals, Guangdong Provincial Public Laboratory of Analysis and Testing Technology, Guangdong Institute of Analysis, Guangzhou 510070, Guangdong, China. FAU - Luo, Huitai AU - Luo H AD - Guangdong Provincial Key Laboratory of Emergency Test for Dangerous Chemicals, Guangdong Provincial Public Laboratory of Analysis and Testing Technology, Guangdong Institute of Analysis, Guangzhou 510070, Guangdong, China. LA - eng PT - Journal Article DEP - 20190718 PL - Netherlands TA - J Chromatogr B Analyt Technol Biomed Life Sci JT - Journal of chromatography. B, Analytical technologies in the biomedical and life sciences JID - 101139554 RN - 0 (Hydrocarbons, Chlorinated) RN - 8002-74-2 (Paraffin) SB - IM MH - Adult MH - Chromatography, High Pressure Liquid/*methods MH - Humans MH - *Hydrocarbons, Chlorinated/blood/chemistry MH - Limit of Detection MH - Linear Models MH - Middle Aged MH - *Paraffin/analogs & derivatives/analysis/chemistry MH - Reproducibility of Results MH - Young Adult OTO - NOTNLM OT - High performance liquid chromatography coupled with electron spray ionization quadrupole time-of-flight mass spectrometry OT - Human serum OT - Medium-chain chlorinated paraffins OT - Short-chain chlorinated paraffins EDAT- 2019/08/12 06:00 MHDA- 2019/12/31 06:00 CRDT- 2019/08/12 06:00 PHST- 2019/03/28 00:00 [received] PHST- 2019/07/04 00:00 [revised] PHST- 2019/07/17 00:00 [accepted] PHST- 2019/08/12 06:00 [pubmed] PHST- 2019/12/31 06:00 [medline] PHST- 2019/08/12 06:00 [entrez] AID - S1570-0232(19)30522-7 [pii] AID - 10.1016/j.jchromb.2019.121722 [doi] PST - ppublish SO - J Chromatogr B Analyt Technol Biomed Life Sci. 2019 Sep 15;1126-1127:121722. doi: 10.1016/j.jchromb.2019.121722. Epub 2019 Jul 18.