气质联用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/mass spectrometry

作　　者：王成云[1] 鹿文军[1] 温志英[1] 马菁菁[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：《分析仪器》2016年第1期38-43,共6页Analytical Instrumentation

摘　　要：建立了电子电气产品塑料部件中6种苯并三唑类紫外线吸收剂的气质联用测定方法。该方法首先用四氢呋喃将测试样品完全溶解,形成澄清透明溶液,再用甲醇进行沉淀,离心分离后,清液用0.22μm滤膜过滤后进行气相色谱/质谱-选择离子监测模式测定,外标法定量。UV-320、UV-328和UV-329的检出限均为0.05mg/kg,UV-320和UV-327的检出限均为0.10mg/kg,UV-P的检出限为0.2mg/kg。在3个不同加标浓度水平下,方法的平均加标回收率为83.84~93.42%,相对标准偏差（RSD,n=9）为1.78~3.84%。该方法简单快速,灵敏度高,重复性好,可用于电子电气产品塑料部件中6种苯并三唑类紫外线吸收剂的同时测定。Plastic components of electrical and electronic products were first dissolved completely by tetrahydrofuran to obtain a transparent solution, this solution was then precipitated with methanol, followed by centrifugal separation. The proposed solution was filtered by 0. 22μm membrane and then ana- lyzed by gas chromatography/mass spectrometry-selected ion monitoring （GC/MS-SIM） technique. The concentration of each analyte was calibrated by external standard method. The limits of detection were all 0.05mg/kg for UV-320,UV-328 and UV-329. The limits of detection were all 0.10mg/kg for UV-326 and UV-327. The limit of detection was 0. 20mg/kg for UV-P. The spiked average recoveries changed from 83.84% to 93.42% under three different spiked levels while the relative standard deviation （RSD,n= 9） varied from 1.78% to 3.84%. The proposed method was simple,sensitive and reproducible,and applicable for the simultaneous determination of six benzotriazole ultraviolet absorbers in plastic components of elec- trical and electronic products.

关 键 词：气相色谱/质谱-选择离子监测法 电子电气产品 塑料 苯并三唑类紫外线吸收剂 

分 类 号：TM506[电气工程—电器] TN06[电子电信—物理电子学] O657.63[理学—分析化学]