气相色谱/串联质谱法同时测定电子电气产品塑料部件中6种苯并三唑类紫外线吸收剂  

Simultaneous Determination of Six Benzotriazole Ultraviolet Absorbers in Plastic Components of Electrical and Electronic Products by Gas Chromatography/Tandem Mass Spectrometry

作　　者：王成云[1] 鹿文军[1] 温志英[1] 张颖[1] 陈华平[1] 陈帆[1] 

机构地区：[1]深圳出入境检验检疫局工业品检测技术中心,深圳518067

出　　处：《塑料助剂》2015年第6期42-46,共5页Plastics Additives

摘　　要：建立了1个气相色谱/串联质谱方法,对电子电气产品塑料部件中6种苯并三唑类紫外线吸收剂进行了同时测定,该方法首先用四氢呋喃将塑料部件完全溶解,然后用甲醇进行沉淀,再进行离心分离,溶液经0.22 um滤膜过滤后直接进行气相色谱/串联质谱法（GC/Ms-Ms）分析,外标法定量。UV-P、UV-320和UV-327的定量下限均为0.10μg/kg,UV-326、UV-328和UV-329的定量下限均为0.30μg/kg。在3个不同加标浓度水平下,加标平均回收率为81.39%-92.51%,相对标准偏差（RSD,n=9）为3.95%-7.65%。该方法简便快捷,定量下限低,灵敏度高,可用于电子电气产品塑料部件中苯并三唑类紫外线吸收剂的测定。An effective method was established for the simultaneous determination of six benzotriazole ultra- violet absorbers in plastic components of electrical and electronic products by gas chromatography/tandem mass spectrometry. Plastic components of electrical and electronic products were first dissolved completely by tetra- hydrofuran to obtain a transparent solution. This solution was then precipitated with methanol, followed by centrifugal separation. The proposed solution was filtered by 0. 22 um membrane and analyzed by gas chromatography/tandem mass spectrometry （GC/MS-MS）. The concentration of each analyte was calibrated by external standard method. The limits of quantification（LOQ） was 0. 10 （ g/kg for UV-P, UV - 320 and UV - 327,0. 30 （g/kg for UV -326, UV -328 and UV -329, respectively. The spiked average recoveries changed from 81.39% to 92. 51% under three different spiked levels while the relative standard deviation （RSD）varied from 3.95%to 7.65%. The proposed method is simple, rapid and sensitive, and applicable for determination of benzotriazole ultraviolet absorbers in plastic components of electrical and electronic products.

关 键 词：气相色谱/串联质谱法 电子电气产品 塑料 苯并三唑类紫外线吸收剂 

分 类 号：O657.63[理学—分析化学] TQ320.77[理学—化学]