PMID- 29048807 OWN - NLM STAT- MEDLINE DCOM- 20181109 LR - 20181109 IS - 1000-8713 (Print) IS - 1000-8713 (Linking) VI - 35 IP - 10 DP - 2017 Oct 8 TI - [Rapid determination of 10 volatile N-nitrosamines in sour meats by modified QuEChERS and gas chromatography- triple quadrupole mass spectrometry]. PG - 1086-1093 LID - 10.3724/SP.J.1123.2017.06006 [doi] AB - A rapid gas chromatography-triple quadrupole mass spectrometry (GC-MS/MS) method with modified QuEChERS method was developed for the determination of 10 volatile N-nitrosamines in sour meats. The samples were extracted with acetonitrile and eliminated the fat with n-hexane. The extracts in acetonitrile layer were purified by octadecyl silane (C18) and primary secondary amine (PSA) sorbents. The N-nitrosamines were determined on a DB-WAX column (30 mx0.25 mmx0.25 mum) by GC-MS/MS in selected reaction monitoring (SRM) mode. The external standard method was used to quantify the N-nitrosamines. The correlation coefficients (r) of the standard calibration curves were greater than 0.99 in the range of 1-100 mug/L. The average recoveries ranged from 79.8% to 115.3% with the relative standard deviations (RSDs) from 0.6% to 22.9% (n=6). The limits of detection (LODs, S/N=3) and limits of quantification (LOQs, S/N=10) were 0.04-0.3 mug/kg and 0.1-1 mug/kg, respectively. The developed method is simple, rapid, sensitive and efficient for the screening of the N-nitrosamines in sour meats. FAU - Zhao, Zhuang AU - Zhao Z AD - Guangxi Institute for Food and Drug Control, Nanning 530021, China. FAU - Xu, Yangbiao AU - Xu Y AD - Guangxi Institute for Food and Drug Control, Nanning 530021, China. FAU - Liu, Xianghong AU - Liu X AD - Guangxi Institute for Food and Drug Control, Nanning 530021, China. FAU - Shi, Xiaoguang AU - Shi X AD - Guangxi Institute for Food and Drug Control, Nanning 530021, China. FAU - Lu, Yixiang AU - Lu Y AD - Guangxi Institute for Food and Drug Control, Nanning 530021, China. 186424006@qq.com. LA - chi PT - Journal Article PL - China TA - Se Pu JT - Se pu = Chinese journal of chromatography JID - 9424804 RN - 0 (Acetonitriles) RN - 0 (Nitrosamines) RN - Z072SB282N (acetonitrile) SB - IM MH - Acetonitriles MH - *Gas Chromatography-Mass Spectrometry MH - Limit of Detection MH - *Meat MH - Nitrosamines/*analysis MH - Tandem Mass Spectrometry OTO - NOTNLM OT - N-nitrosamines OT - QuEChERS OT - gas chromatography-triple quadrupole mass spectrometry (GC-MS/MS) OT - sour meats EDAT- 2017/10/20 06:00 MHDA- 2018/11/10 06:00 CRDT- 2017/10/20 06:00 PHST- 2017/10/20 06:00 [entrez] PHST- 2017/10/20 06:00 [pubmed] PHST- 2018/11/10 06:00 [medline] AID - 10.3724/SP.J.1123.2017.06006 [doi] PST - ppublish SO - Se Pu. 2017 Oct 8;35(10):1086-1093. doi: 10.3724/SP.J.1123.2017.06006.