摘要
为测定人造革中苯并三唑类紫外线吸收剂的含量，建立了一种高效液相色谱方法，该方法以正己烷／丙酮（1：1）为萃取溶剂，80℃下微波萃取人造革中的苯并三唑类紫外线吸收剂，萃取液经甲醇沉淀后浓缩定容，直接进行高效液相色谱分析，外标法定量。在信噪比（S／N）=3的条件下，UV-350、UV-P、UV-329、UV-327和UV-326的检出限均为0．05mg／kg，UV-328和UV-320的检出限均为0．10mg／kg。在3个不同加标浓度水平下，各组分的加标平均回收率为88．04％～97．91％，相对标准偏差（RSD）为0．70％-4．97％。该方法简便快捷、灵敏度高、检出限低，可完全满足人造革中苯并三唑类紫外线吸收剂含量测定的需要。
A high-performance liquid chromatographic method was established for the determination of benzotriazole ultraviolet absorbers in artificial leathers. Benzotriazole ultraviolet absorbers in artificial leathers were microwave-assisted extracted at 80 ~C, using n-hexane/acetone （ 1 ： 1 ） as the extraction sol- vent. The extract was then precipitated by methanol and condensed, foUowed by the analysis of high-per- formance liquid chromatography technique. The concentration of each analyte was calibrated by external standard method. Under the condition that signal to noise （S/N） equalled three, the limits of detection （LODs） were 0.05 mg/kg for UV -350, UV -P, UV -329, UV -327 and UV -326, 0.10 mg/kg for UV- 328 and UV -320, respectively. The spiked average recoveries changed from 88.04% to 97.91% under three different spiked levels while the relative standard deviation （RSD） varied from 0.70% to 4.97%. The proposed method was simple, rapid, sensitive, had low detection limit, and could completely satisfy the demand for the determination of benzotriazole ultraviolet absorbers in artificial leathers.
出处
《聚氯乙烯》
CAS
2016年第7期30-34,37,共6页
Polyvinyl Chloride
基金
国家质检总局科研计划项目(2014IK163)~~
关键词
人造革
高效液相色谱
微波辅助萃取
苯并三唑类紫外线吸收剂
artificial leather
high-performance liquid chromatography
microwave-assisted extrac-tion
benzotriazole ultraviolet absorber
