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-(Pentafluorobenzyloxycarbonyl)benzoyl chloride: a novel electrophoric derivatisation reagent for amino compounds designed for negative ion chemical ionisation mass spectrometry
作者:Hans J. Leis、Werner Windischhofer
DOI:10.1002/rcm.4775
日期:2010.11.30
reagent was tested against selected primary and secondary amino compounds as analytical targets. The derivatives exhibit excellent mass spectral properties under negative ion chemical ionisation (NICI), i.e. reduced fragmentation and thus high ion current for the targeted m/z during analysis. Since the reagent bears a pentafluorobenzyl ester group, resulting mass NICI mass spectra were expectedly dominated
描述了一种新型的电泳衍生试剂o-(五氟苄氧基羰基)苯甲酰氯的合成。针对所选的伯氨基和仲氨基化合物作为分析目标测试了该试剂。衍生物在负离子化学电离(NICI)下表现出出色的质谱特性,即在分析过程中减少的碎裂并因此使目标m / z的离子流增加。由于该试剂带有五氟苄基酯基团,因此预期得到的质谱NICI质谱图主要是由这些化合物通常观察到的离解共振电子捕获所决定。该试剂适用于高灵敏度检测挥发性伯胺和仲胺。通过检测到的m / z的变化来减少背景和保留时间,如从人血浆中分析哌醋甲酯的结果所示。版权所有©2010 John Wiley&Sons,Ltd.