芳香环状聚膦酸酯齐聚物的基质辅助激光解吸电离飞行时间质谱分析

用基质辅助激光解吸电离飞行时间质谱方法对一系列芳香环状聚膦酸酯低聚物进行了结构分析。比较了不同基质及阳离子剂对芳香环状聚膦酸酯分析结果的影响。1,8,9-蒽三酚基质仅对含有羰基基团聚膦酸酯环状齐聚物分析有效，而视黄酸基质则对所有聚膦酸酯环状剂聚物有效，是这类新型芳香环状齐聚物的适宜基质。环状聚膦酸酯齐聚物的阳离子齐分析表明，氯化锂是这种环状齐聚物的适宜的阳离子添加剂。

Analysis of Poly(arylene phosphonate) Cyclic Oligomer by Matrix-assisted Laser Desorption/Ionization Time-of-flight Mass Spectrometry

Matrix assisted laser desorption/ionization time of flight mass spectrometry (MALDI TOF MS) was used for analysis of poly(arylene phosphonate) cyclic oligomers. A comparison was made by using 1,8,9 dithranol, 2,5 dihydroxybenzoic acid and retinoic acid as the matrix. The result showed that the retinoic acid produced the strongest ion signals under the conditions used. Different salts of metals were used as the cationization agents to examine the effect on the cyclic oligomers. It was found that the salts could produce metal cyclic oligomer cation spectra and lithium was the stronger one than those of silver so, the suitable matrix and cationization agent for the new cyclic oligmer were obtained. They were very effective for the analysis of poly(arylene phosphonate) cyclic oligomer.