PMID- 31642285 OWN - NLM STAT- MEDLINE DCOM- 20191025 LR - 20200108 IS - 1872-2059 (Electronic) IS - 1000-8713 (Linking) VI - 37 IP - 10 DP - 2019 Oct 8 TI - [Determination of chlorate and perchlorate in milk power by high-performance liquid chromatography-tandem mass spectrometry]. PG - 1064-1070 LID - 10.3724/SP.J.1123.2019.04052 [doi] AB - An analytical method based on high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) was developed for detecting chlorate and perchlorate residues in milk power. Chlorate and perchlorate in milk power were extracted using a 0.1% (v/v) formic acid-acetonitrile solution. The extract was centrifuged at 10000 r/min for 10 min, and the supernatant was cleaned up on a PRiME HLB column. Separation of chlorate and perchlorate was performed on an ion-exchange column (Thermo Scientific Acclaim TRINITY P1, 50 mmx2.1 mm, 3 mum) by gradient elution using acetonitrile and 20 mmol/L ammonium acetate solution as the mobile phase. The analytes were identified by MS/MS. Quantification was achieved using internal standards. Chlorate and perchlorate demonstrated good linearity in the ranges of 2.0-40.0 and 1.0-20.0 mug/L, respectively, with correlation coefficients (r(2)) greater than 0.999. The limits of quantification (LOQs) of chlorate and perchlorate were found to be 15.0 and 7.5 mug/kg, respectively. The recoveries of chlorate and perchlorate ranged from 89.24% to 107.85% at the three spike levels of 30.0, 60.0, and 120.0, and 15.0, 30.0, and 60.0 mug/kg, respectively, with relative standard deviations (RSDs) ranging from 3.15% to 10.42% (n=6). This method is convenient, rapid, accurate, and efficient, thus demonstrating its suitability for use in the determination of chlorate and perchlorate in milk power. FAU - Zhou, Xiaoqing AU - Zhou X AD - Jiang Xi Institute for Food Control, Nanchang 330001, China. FAU - Lu, Xiaoli AU - Lu X AD - Jiang Xi Institute for Food Control, Nanchang 330001, China. FAU - Wan, Jianchun AU - Wan J AD - Jiang Xi Institute for Food Control, Nanchang 330001, China. FAU - Guo, Ping AU - Guo P AD - Jiang Xi Institute for Food Control, Nanchang 330001, China. FAU - Guo, Dan AU - Guo D AD - Jiang Xi Institute for Food Control, Nanchang 330001, China. FAU - Xi, Huiting AU - Xi H AD - State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China. LA - chi PT - Journal Article PL - China TA - Se Pu JT - Se pu = Chinese journal of chromatography JID - 9424804 RN - 0 (Chlorates) RN - 0 (Perchlorates) SB - IM MH - Animals MH - Chlorates/*analysis MH - Chromatography, High Pressure Liquid MH - Food Contamination/*analysis MH - Milk/*chemistry MH - Perchlorates/*analysis MH - Tandem Mass Spectrometry OTO - NOTNLM OT - chlorate OT - high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) OT - milk power OT - perchlorate EDAT- 2019/10/24 06:00 MHDA- 2019/10/28 06:00 CRDT- 2019/10/24 06:00 PHST- 2019/10/24 06:00 [entrez] PHST- 2019/10/24 06:00 [pubmed] PHST- 2019/10/28 06:00 [medline] AID - 10.3724/SP.J.1123.2019.04052 [doi] PST - ppublish SO - Se Pu. 2019 Oct 8;37(10):1064-1070. doi: 10.3724/SP.J.1123.2019.04052.