光引发剂残留分析研究进展

光引发剂残留分析起步较晚,由于残留水平低,在分析中更多地使用了较新的高灵敏度分析技术。文章对光引发剂Benzophenone、ITX、Irgacure 184、Irgacure 907、Irgacure 369、TPO和EHA的定义、种类、来源和危害进行了介绍;总结了目前光引发剂残留分析几类检测方法,包括气相色谱-质谱联用、薄层色谱-质谱联用、液相色谱-质谱联用等,由于气相色谱使用范围的限制,液相色谱-质谱在光引发剂分析中应用越来越广泛。比较了常用的样品前处理手段的优缺点,如液-液萃取、加速溶剂萃取、固相萃取等。相对于其他方法,固相萃取更为成熟,普适性更强,便于实现大批量光引发剂中多残留分析。光引发剂的多残留分析甚至与其他农药、兽药残留同时分析是未来发展的方向。

A Review on the Analysis of Photoinitiator Residues

The analysis of photoinitiator residues was lately developed. The advanced high-sensitive analytical techniques have been usually applied to the analysis of photoinitiator residues because of their lower concentration level. In this paper, the definition of photoinitiators including Benzophenone, ITX, Irgacure 184, Irgacure 907, Irgacure 369, TPO, EHA was introduced as well as their types, sources and harmfulness. The detection technologies of photoinitiator residues, such as gas chromatography-mass spectrometry (GC-MS), paper chromatography-mass spectrometry and liquid chromatography-mass spectrometry were summarized. Because of the technical limit of gas chromatography, liquid chromatography-mass spectrometry was more commonly applied to the detection of photoinitiator residues. The different procedures of sample pretreatment, such as liquid-liquid extraction, accelerated solvent extraction (ASE), solid phase extraction (SPE), etc. were compared. Comparing with other pretreatment technologies, solid phase extraction is more mature and suitable for high-throughput analysis of photoinitiator residues. The detection of photoinitiator residues and the simultaneous detection of pesticide residues and veterinary drug residues are the direction of future development.