PMID- 30378379 OWN - NLM STAT- MEDLINE DCOM- 20181126 LR - 20181126 IS - 1872-2059 (Electronic) IS - 1000-8713 (Linking) VI - 36 IP - 11 DP - 2018 Nov 1 TI - [Simultaneous determination of 28 corticosteroids in surface water by ultra-high performance liquid chromatography-electrospray tandem mass spectrometry]. PG - 1158-1166 LID - 10.3724/SP.J.1123.2018.06010 [doi] AB - A comprehensive analytical method was developed for simultaneous determination of 28 corticosteroids in surface water based on ultra-high performance liquid chromatography- electrospray tandem mass spectrometry (UHPLC-ESI-MS/MS). The solid-phase extraction was performed using hydrophilic-lipophilic balance (HLB) cartridges, and the chromatographic separation was achieved on a reversed-phase C8 column. Qualitative and quantitative analyses were performed in the dynamic multiple reaction monitoring (DMRM) mode using positive and negative electrospray ionization (ESI+/-). The 28 target compounds were quantified by the internal standard method. Good linear relationships were obtained (R(2)>0.99) for the 28 analytes in the concentration range of 1.0-100 mug/L. The method limits of detection and quantification were in the range of 0.21-0.48 ng/L and 0.32-0.72 ng/L, respectively. When the matrix spiking levels were at 5.0, 10, and 50 ng/L, the average recoveries for the target compounds ranged from 68.6% to 108.7%, and the relative standard deviations (RSDs) were between 0.1% and 8.1%. Because of its high sensitivity, good precision, and reliability, this method can be widely applied to trace monitoring of glucocorticoids and mineral ocorticoids for investigating their behaviors and risks of corticosteroids in the environment. FAU - Gong, Jian AU - Gong J AD - School of Environmental Science and Engineering, Guangzhou University, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, Guangzhou 510006, China. FAU - Lin, Canyuan AU - Lin C AD - School of Environmental Science and Engineering, Guangzhou University, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, Guangzhou 510006, China. FAU - Xiong, Xiaoping AU - Xiong X AD - School of Environmental Science and Engineering, Guangzhou University, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, Guangzhou 510006, China. FAU - Chen, Diyun AU - Chen D AD - School of Environmental Science and Engineering, Guangzhou University, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, Guangzhou 510006, China. FAU - Chen, Yongheng AU - Chen Y AD - School of Environmental Science and Engineering, Guangzhou University, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, Guangzhou 510006, China. FAU - Wu, Cuiqin AU - Wu C AD - School of Environmental Science and Engineering, Guangzhou University, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, Guangzhou 510006, China. LA - chi PT - Journal Article PL - China TA - Se Pu JT - Se pu = Chinese journal of chromatography JID - 9424804 RN - 0 (Glucocorticoids) RN - 0 (Water Pollutants, Chemical) RN - 059QF0KO0R (Water) SB - IM MH - Chromatography, High Pressure Liquid MH - Glucocorticoids/*analysis MH - Reproducibility of Results MH - Solid Phase Extraction MH - Spectrometry, Mass, Electrospray Ionization MH - Tandem Mass Spectrometry MH - Water/*analysis MH - Water Pollutants, Chemical/*analysis OTO - NOTNLM OT - corticosteroids OT - surface water OT - ultra-high performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS) EDAT- 2018/11/01 06:00 MHDA- 2018/11/27 06:00 CRDT- 2018/11/01 06:00 PHST- 2018/11/01 06:00 [entrez] PHST- 2018/11/01 06:00 [pubmed] PHST- 2018/11/27 06:00 [medline] AID - 10.3724/SP.J.1123.2018.06010 [doi] PST - ppublish SO - Se Pu. 2018 Nov 1;36(11):1158-1166. doi: 10.3724/SP.J.1123.2018.06010.