Simultaneous Determination of Benzotriazoles and Benzothiazoles in Surface Water by Solid Phase Extraction and High Performance Liquid Chromatography-Tandem Mass Spectrometry
Simultaneous Determination of Benzotriazoles and Benzothiazoles in Surface Water by Solid Phase Extraction and High Performance Liquid Chromatography-Tandem Mass Spectrometry[J]. 2013,32(9):1056-1061.
Simultaneous Determination of Benzotriazoles and Benzothiazoles in Surface Water by Solid Phase Extraction and High Performance Liquid Chromatography-Tandem Mass Spectrometry[J]. 2013,32(9):1056-1061.DOI:
A simple method based on SPE coupled with HPLC-MS/MS was developed for the determination of 1H-benzotriazole(BTri),5-methyl-1H-benzotriazole(5-TTri),5,6-dimethyl-1H-benzotriazole(5,6-DMBTri),5-chloro-1H-benzotriazole(5-ClBTri),1-hydroxybenzotriazole(1-OHBTri),benzothiazole(BT),2-aminobenzothiazole(2-ABT) and 2-methylbenzothiazole(2-TBT) in surface water.Extraction and cleanup of surface water samples were performed on an HLB solid-phase extraction cartridge.The optimum extraction process was as follows:pH value of sample:3.0,sampling volume:200 mL,washing solvent:3 mL 10% methanol,eluting solvent:6 mL 20% acetone in methanol.Separation of target compounds was achieved on a Hypersil GOLD analytical column(150 mm×2.1 mm) with methanol-acetonitrile-water as mobile phase by gradient elution.Quantitative analysis by ESI-MS/MS was achieved using positive ion mode with multiple reaction monitoring mode.The calibration curves were linear in the range of 8-1 000 μg/L for 1-OHBTri,BT and 2-TBT,and 1.6-1 000 μg/L for rest of the compounds,with correlation coefficients more than 0.99.The average recoveries of target compounds were in the range of 59.8%-98.7% with relative standard deviations(RSDs,n=5) of 0.9%-12.5%.The instrumental limits of detection(S/N=3) for eight target compounds were in the range of 0.03-1.4 μg/L。
关键词
苯并三唑衍生物苯并噻唑衍生物固相萃取高效液相色谱串联质谱地表水
Keywords
benzotriazolesbenzothiazolessolid-phase extractionhigh performance liquid chro-matography-tandem mass spectrometry(HPLC-MS/MS)surface water