基质辅助激光解吸电离-飞行时间质谱表征6氟双酚A芳香环状聚醚酮(砜)

Characterization of Cyclic Arylether Ketone(Sulfone) Containing Hexafluoroisopropylidene Unit by Matrix-Assisted Laser Desorption Ionization Time-of-flight Mass Spectrometry

应用基质辅助激光解吸电离飞行时间质谱,在不同阳离子剂的存在下,对6氟双酚A聚芳醚酮(砜)环状低聚物的结构进行了确认,研究了环状化合物对金属离子的选择性及激光质谱表征含氟环状低聚物的适宜条件.

The cyclic arylether ketone(sulfone) oligomers containing hexafluoroisopropylidene unit were characterized by matrix-assisted laser desorption ionization time-of-flight mass spectrometry( MALDI-TOF-MS) using Na+ and Ag+ as cationization agents. The affinities of cyclic oligomers to the cation were studied. The analysis result showed that 1,8,9-dithranol, in the presence of silver trifluoroacetate, was very effective for the characterization of cyclic arylether ketone (sulfone) containing hexafhioroisopropylidene unit.