双卟啉化合物的快原子轰击和基体辅助激光解吸质谱研究

Investigation of Dimeric Porphyrins by FABMS and MALDMS

本文研究了３种双卟啉化合物的快原子轰击和基体辅助激光解吸质谱行为，并对２种质谱行为进行了比较。结果表明，基体辅助解吸质谱是更有效的“软电离”方法，能更好地提供双吟琳化合物的分子量信息，其质谱图简单清晰；而快原子轰击质谱则能较好地提供双卟啉化合物裂解碎片的信息，特别是桥链断裂的信息。

The fast atom bombardment mass spectrometry(FABMS)and matrix assisted laser desorption mass spectrometry (MALDMS ) of three dimeric porphyrins have been stu died and compared. The results indicate that,MALDMS is a more effective soft ionization method for providing molecular weight information of dimeric porphyrins,and its spectrum is simple and clear;while FABMS is better in providing fragmentation information of bridge chain in dimeric porphyrins.