PMID- 38093539 OWN - NLM STAT- MEDLINE DCOM- 20231216 LR - 20231216 IS - 1872-2059 (Electronic) IS - 1000-8713 (Print) IS - 1000-8713 (Linking) VI - 41 IP - 12 DP - 2023 Dec TI - [Determination of 14 perfluoroalkyl substances in Chinese mitten crab by multi-plug filtration cleanup coupled with ultra-performance liquid chromatography-tandem mass spectrometry]. PG - 1095-1105 LID - 10.3724/SP.J.1123.2023.07017 [doi] AB - Perfluoroalkyl substances (PFASs) have become a new food-safety problem. Dietary intake is a major pathway of human exposure to PFASs. Chinese mitten crab (Eriocheir sinensis) is a high-end aquaculture product popular among consumers in China. Conventional extraction methods for PFASs are cumbersome and time consuming, and result in incomplete purification; thus, this technique does not meet the requirements for PFAS detection. Herein, an analytical strategy was established for the rapid detection of 14 PFASs in Chinese mitten crab based on multi-plug filtration cleanup (m-PFC) and ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS). The carbon-chain length of the 14 PFASs analyzed in this study ranged from 4 to 14, and they are perfluorobutanoic acid (PFBA), perfluoro-n-pentanoic acid (PFPeA), perfluorohexanoic acid (PFHxA), perfluoroheptanoic acid (PFHpA), perfluorooctanoic acid (PFOA), perfluorononanoic acid (PFNA), perfluorodecanoic acid (PFDA), perfluoroundecanoic acid (PFUnDA), perfluorododecanoic acid (PFDoDA), perfluorotetradecanoic acid (PFTeDA), perfluoro-1-butane sulfonic acid (PFBS), perfluoro-1-hexane sulfonic acid (PFHxS), perfluoro-1-octane sulfonic acid (PFOS), and perfluoro-1-decanesulfonate (PFDS). The m-PFC column was prepared using carboxy-based multiwalled carbon nanotubes, and used to reduce the interference of sample impurities. The samples were extracted with 5 mL of 0.1% formic acid aqueous solution, 15 mL of acetonitrile and extraction salt (2 g Na(2)SO(4) and 2 g NaCl). The supernatant (10 mL) was purified using the m-PFC column, concentrated to near dryness under nitrogen, and then redissolved in 1 mL of methanol. Finally, the sample solution was filtered through a 0.22 mum polypropylene syringe filter for UPLC-MS/MS analysis. The target analytes were separated using a Shimadzu Shim-pack G1ST-C18 chromatographic column (100 mmx2.1 mm, 2 mum) using methanol (A) and 5 mmol/L ammonium acetate aqueous solution (B) as the mobile phases via gradient elution. The linear gradient program were as follows: 0-0.5 min, 10%A-35%A; 0.5-3 min, 35%A-60%A; 3-5 min, 60%A-100%A; 5-6.5 min, 100%A; 6.5-7 min, 100%A-10%A. The target analytes were analyzed using negative electrospray ionization in multiple-reaction monitoring mode, and quantitative analysis was performed using the internal standard method. In this study, we optimized the mobile-phase system as well as the extraction solvent, time, volume, and salt. The 14 PFASs exhibited good peak shapes and sensitivities when the 5 mmol/L ammonium acetate solution-methanol system was used as the mobile phase. Compared with acetonitrile or methanol alone, the extraction efficiencies of the 14 PFASs were significantly improved when 5 mL of 0.1% formic acid aqueous solution was added, followed by 15 mL of acetonitrile. The extraction efficiencies of the 14 PFASs did not differ significantly when the extraction time was within 3-15 min. The extraction salt (MgSO(4), Na(2)SO(4), NaCl, (NH(4))(2)SO(4), and Na(2)SO(4)+NaCl) significantly affected the extraction efficiencies of the 14 PFASs. The highest extraction efficiencies of the 14 PFASs, which ranged from 47.9% to 121.9%, were obtained when Na(2)SO(4)+NaCl was used as the extraction salt. Under the optimal experimental conditions, good linearities (R(2)=0.998-0.999) were obtained for seven PFASs (PFBS, PFHxA, PFHpA, PFHxS, PFDA, PFDoDA, PFTeDA) at 0.10-100 mug/L, and seven PFASs (PFBA, PFPeA, PFOA, PFOS, PFNA, PFUnDA, PFDS) at 0.50-100 mug/L. The average spiked recoveries for the 14 PFASs in Chinese mitten crabs at three levels ranged from 73.1% to 120%, with relative standard deviations (RSDs) in the range of 1.68%-19.5%(n=6). The limits of detection (LODs) and quantification (LOQs) of the 14 PFASs were in the range of 0.03-0.15 and 0.10-0.50 mug/kg, respectively. The developed method was applied to the analysis of crab samples collected from three farms in Shanghai, and PFASs with total concentrations of 3.52-37.77 mug/kg were detected in all samples. The detection frequencies for PFDA, PFUnDA, PFDoDA, PFTeDA, and PFOS were 100%. PFDA, PFUnDA, PFOS, and PFDoDA were the most abundant congeners, accounting for 31.2%, 30.6%, 15.0%, and 10.9%, respectively, of the 14 PFASs detected. The proposed method is simple, efficient, accurate, and suitable for the rapid analysis of 14 PFASs in Chinese mitten crabs. FAU - Wang, Xianli AU - Wang X AD - Institute for Agro-food Standards and Testing Technology, Shanghai Academy of Agricultural Sciences, ShanghaiAgricultural Product Quality and Safety Evaluation Technical Service Platform, Shanghai 201403, China. FAU - Rao, Qinxiong AU - Rao Q AD - Institute for Agro-food Standards and Testing Technology, Shanghai Academy of Agricultural Sciences, ShanghaiAgricultural Product Quality and Safety Evaluation Technical Service Platform, Shanghai 201403, China. FAU - Zhang, Qicai AU - Zhang Q AD - Institute for Agro-food Standards and Testing Technology, Shanghai Academy of Agricultural Sciences, ShanghaiAgricultural Product Quality and Safety Evaluation Technical Service Platform, Shanghai 201403, China. FAU - DU, Penghui AU - DU P AD - Institute for Agro-food Standards and Testing Technology, Shanghai Academy of Agricultural Sciences, ShanghaiAgricultural Product Quality and Safety Evaluation Technical Service Platform, Shanghai 201403, China. FAU - Song, Weiguo AU - Song W AD - Institute for Agro-food Standards and Testing Technology, Shanghai Academy of Agricultural Sciences, ShanghaiAgricultural Product Quality and Safety Evaluation Technical Service Platform, Shanghai 201403, China. LA - chi PT - English Abstract PT - Journal Article PL - China TA - Se Pu JT - Se pu = Chinese journal of chromatography JID - 9424804 RN - 0 (perfluoroundecanoic acid) RN - RRE756S6Q2 (ammonium acetate) RN - 0YIW783RG1 (formic acid) RN - 451W47IQ8X (Sodium Chloride) RN - Y4S76JWI15 (Methanol) RN - 0 (Nanotubes, Carbon) RN - 0 (Fluorocarbons) RN - 0 (perfluorotetradecanoic acid) RN - 947VD76D3L (perfluorooctanoic acid) RN - 6P60ZBK0QL (perfluorooctane) RN - 375-95-1 (perfluoro-n-nonanoic acid) RN - 0 (Sulfonic Acids) RN - 0 (Acetonitriles) SB - IM MH - Humans MH - Tandem Mass Spectrometry MH - Chromatography, Liquid MH - Sodium Chloride/analysis MH - Methanol MH - *Nanotubes, Carbon/analysis MH - China MH - *Fluorocarbons/analysis MH - Sulfonic Acids/analysis MH - Acetonitriles MH - Chromatography, High Pressure Liquid MH - Solid Phase Extraction PMC - PMC10719808 OTO - NOTNLM OT - Chinese mitten crab OT - multi-plug filtration cleanup (m-PFC) OT - perfluoroalkyl substances (PFASs) OT - ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) EDAT- 2023/12/14 06:42 MHDA- 2023/12/17 10:19 PMCR- 2023/12/08 CRDT- 2023/12/14 02:05 PHST- 2023/12/17 10:19 [medline] PHST- 2023/12/14 06:42 [pubmed] PHST- 2023/12/14 02:05 [entrez] PHST- 2023/12/08 00:00 [pmc-release] AID - 10.3724/SP.J.1123.2023.07017 [doi] PST - ppublish SO - Se Pu. 2023 Dec;41(12):1095-1105. doi: 10.3724/SP.J.1123.2023.07017.