Characterization of the various chemical aspects of composite polymers is important for quality control of manufactured polymers. In this study, we compared three suitable matrices (α cyano-4-hydroxycinnamic acid [CHCA], 2,5 dihydroxy benzoic acid [2,5-DHB], and dithranol), to characterize various synthetic polymers by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry. Although the spectra obtained with the CHCA and 2,5-DHB matrices were generally good, in certain samples ghost peaks disappeared only when dithranol was used as the matrix. Furthermore, we examined the use of sodium trifluoroacetate (NaTFA) as an additive to reduce interference by metals and copolymers in the spectra. In conclusion, appropriate selection of a matrix, according to the characteristics of the polymer, and the use of additives to improve sensitivity are important considerations for polymer analysis and development.
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机译：复合聚合物的各种化学方面的表征对于制造聚合物的质量控制是重要的。在这项研究中，我们将三种合适的基质（α氰基-4-羟基氨基酸[CHCA]，2,5二羟基苯甲酸[2,5-DHB]和二苯甲醚）进行了比较，通过基质辅助激光解吸来表征各种合成聚合物/电离飞行时间质谱。尽管用CHCA和2,5-DHB基质获得的光谱通常是良好的，但在某些样品中，鬼峰仅在用Dithranol作为基质时消失。此外，我们研究了三氟乙酸钠（NATFA）作为添加剂的用途，以减少光谱中金属和共聚物的干扰。 In conclusion, appropriate selection of a matrix, according to the characteristics of the polymer, and the use of additives to improve sensitivity are important considerations for polymer analysis and development.
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