PMID- 34213135 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20210702 IS - 1872-2059 (Electronic) IS - 1000-8713 (Linking) VI - 37 IP - 12 DP - 2019 Dec 8 TI - [Determination of sodium picosulfate in enzyme products by high-performance liquid chromatography-tandem mass spectrometry]. PG - 1331-1336 LID - 10.3724/SP.J.1123.2019.05035 [doi] AB - A method based on high-performance liquid chromatography-tandem mass spectrometry was developed for the determination of sodium picosulfate in enzyme products. Sodium picosulfate is a new slimming aid that is illegally added to food products. The existing analytical methods are not suitable for application to jellies and gel candies, thus triggering the need for developing a new method. The samples were extracted with water and passed through a polyamide cartridge. The extracts were separated on a Thermo Accucore RP-MS column (100 mmx2.1 mm, 2.6 mum) using acetonitrile-10 mmol/L ammonium acetate solution (15:85, v/v) as the mobile phase. The flow rate of the mobile phase was 0.3 mL/min, and the column temperature was 35 ℃. Detection was carried out in the multiple reaction monitoring (MRM) mode. Quantification analysis was performed by the external standard method. The results showed that sodium picosulfate had a good linear relationship in the range of 5-500 mug/L, and the correlation coefficient (r) was 0.9999. The limit of detection (LOD) was 0.05 mg/kg. The average recoveries of sodium picosulfate in different matrices were in the range of 89.2%-111.8%, with the relative standard deviations (RSDs) of 2.5%-10.4%. The method was applied to the analysis of 152 samples, and 58 positive samples were detected. The positive rate was 38.2%. The developed method is accurate and sensitive, and it is suitable for detecting sodium picosulfate in enzyme products. FAU - He, Jiawen AU - He J AD - Guangdong Institute for Drug Control, Guangzhou 510180, China. FAU - Wen, Jiaxin AU - Wen J AD - Guangdong Institute for Drug Control, Guangzhou 510180, China. FAU - Lai, Yuhong AU - Lai Y AD - Guangdong Institute for Drug Control, Guangzhou 510180, China. FAU - Liu, Yaxiong AU - Liu Y AD - Guangdong Institute for Drug Control, Guangzhou 510180, China. FAU - Cao, Yajing AU - Cao Y AD - Guangdong Institute for Drug Control, Guangzhou 510180, China. FAU - Chen, Qiao AU - Chen Q AD - Guangdong Institute for Drug Control, Guangzhou 510180, China. LA - chi PT - English Abstract PT - Journal Article PL - China TA - Se Pu JT - Se pu = Chinese journal of chromatography JID - 9424804 SB - IM OTO - NOTNLM OT - enzyme product OT - high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) OT - illegally added OT - slimming OT - sodium picosulfate EDAT- 2019/12/08 00:00 MHDA- 2019/12/08 00:01 CRDT- 2021/07/02 09:12 PHST- 2021/07/02 09:12 [entrez] PHST- 2019/12/08 00:00 [pubmed] PHST- 2019/12/08 00:01 [medline] AID - 10.3724/SP.J.1123.2019.05035 [doi] PST - ppublish SO - Se Pu. 2019 Dec 8;37(12):1331-1336. doi: 10.3724/SP.J.1123.2019.05035.