Traditional soft ionization methods are not always suitable for mass spectral analysis of complex compounds. Factors such as laser radiation and heating resulting in fragmentations of sample molecules in the case of matrix-assisted laser desorption/ionization and difficulties in preparing suitable sample solutions in the case of electrospray ionization make it impossible to use these methods in some cases. Matrix-assisted ionization was used to analyze products of chemical synthesis involving pyropheophorbide and fullerene. Mass spectra were acquired using a simple effective modification of the Exactive Orbitrap mass spectrometer electrospray interface. Reliable identification of pyropheophorbide-fullerene dyad ions and its derivatives was carried out. An experimental comparison of a matrix-assisted ionization and an electrospray ionization technique demonstrated the significant advantage in sensitivity to the ions under study (approximately 20 times higher) of the matrix-assisted ionization method in this particular study.

中文翻译：

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使用基质辅助电离方法对富勒烯染料共轭物进行质谱鉴定

传统的软电离方法并不总是适用于复杂化合物的质谱分析。在基质辅助激光解吸/电离的情况下，激光辐射和加热等因素会导致样品分子破碎，在电喷雾电离的情况下难以制备合适的样品溶液，因此在某些情况下无法使用这些方法。基质辅助电离用于分析涉及焦脱镁叶绿素和富勒烯的化学合成产物。质谱是使用 Exactive Orbitrap 质谱仪电喷雾接口的简单有效修改获得的。对焦脱镁叶绿素-富勒烯二元离子及其衍生物进行了可靠的鉴定。