Institute for Chemical Technology of Organic Materials, Johannes Kepler University, Linz, Austria.
J Am Soc Mass Spectrom. 2012 Jun;23(6):1120-5. doi: 10.1007/s13361-012-0367-1. Epub 2012 Mar 27.
MALDI-TOF MS is used for the qualitative analysis of seven different polymer additives directly from the polymer without tedious sample pretreatment. Additionally, by using a solid sample preparation technique, which avoids the concentration gradient problems known to occur with dried droplets and by adding tetraphenylporphyrine as an internal standard to the matrix, it is possible to perform quantitative analysis of additives directly from the polymer sample. Calibration curves for Tinuvin 770, Tinuvin 622, Irganox 1024, Irganox 1010, Irgafos 168, and Chimassorb 944 are presented, showing coefficients of determination between 0.911 and 0.990.
基质辅助激光解吸电离飞行时间质谱（MALDI-TOF MS）可用于定性分析聚合物中的七种不同添加剂，无需繁琐的样品预处理。此外，通过使用固体样品制备技术，可以避免已知的干燥液滴中出现的浓度梯度问题，并向基质中添加四苯基卟啉作为内标，可直接从聚合物样品中进行添加剂的定量分析。本文提供了 Tinuvin 770、Tinuvin 622、Irganox 1024、Irganox 1010、Irgafos 168 和 Chimassorb 944 的校准曲线，其决定系数在 0.911 至 0.990 之间。
