摘要
建立了地表水中6种苯并三唑类紫外线过滤剂：2-（2-羟基-5-甲基苯基）苯并三唑（UV-P）、2-（5-叔丁基-2-羟苯基）苯并三唑（UV-PS）、2-（5-氯-2-苯并三唑）-6-叔丁基对甲酚（UV-326）、2-（3，5-二叔丁基-2-羟苯基）-5-氯苯并三唑（UV-327）、2-（3，5-二叔戊基-2-羟基苯基）苯并三唑（UV-328）及2-（2-羟基-5-叔辛基苯基）苯并三唑（UV-329）的分散液液微萃取/气相色谱-串联质谱分析方法。以50 μL氯仿为萃取溶剂，600 μL乙醇为分散溶剂，样品pH值为3.0。目标化合物经Rtx？-5MS色谱柱结合程序升温分离后，用多重反应监测模式进行质谱分析，外标法定量。结果表明，6种化合物的基质加标回收率为83.5%~104.5%，相对标准偏差为5.1%~10.1%，方法的检出限为0.002~0.03 μg/L，定量下限为0.008~0.1 μg/L。
A novel dispersive liquid-liquid microextraction method was developed for the determination of six kinds of benzotriazole UV stabilizers：UV-P,UV-PS,UV-326,UV-327,UV-328 and UV-329 in water samples by gas chromatography with tandem mass spectrometry（GC-MS/MS）.The optimal liquid-liquid microextraction experiment conditions were as follows：50 μL chloroform as extractant solvent，600 μL ethanol as dispersive solvent，pH value of sample：3.0．The target compounds were separated on a Rtx-5MS column（30 m×0.25 mm×0.25 μm） and subsequently determined by triple quadruple mass spectrometry in multiple reaction monitoring mode.Quantitative determination was achieved by the external standard method.The average recoveries of target compounds were in the range of 83.5%-104.5%,with relative standard deviations（RSD,n=5） of 5.1%-10.1%.The method detection limits（LOD） for the six target compounds were in the range of 0.002-0.03 μg/L and the quantitation limits（LOQ） were 0.008-0.1 μg/L.
出处
《分析测试学报》
CAS
CSCD
北大核心
2016年第9期1172-1175,共4页
Journal of Instrumental Analysis
基金
国家重点基础研究发展计划(973计划项目)(2009CB421602)
