Wickramanayake P P, Deinzer M L, Burlingame A L
Biomed Mass Spectrom. 1985 Mar;12(3):127-33. doi: 10.1002/bms.1200120307.
Mass spectra of a series of chloro- and nitrophenylglucuronides by liquid secondary ion (LSI) mass spectrometry were obtained. In the positive ion mode class characteristic fragmentations and adduct ions are observed only in the presence of alkali salt additives. No additives were necessary in the negative ion mode to see abundant class characteristic [M-H]- and aglycone fragment ions. Cluster ion formation was found to be prominent but only in the negative ion mode.
通过液体二次离子（LSI）质谱法获得了一系列氯代和硝基苯基葡萄糖醛酸苷的质谱。在正离子模式下，只有在存在碱金属盐添加剂的情况下才会观察到类别特征性的碎裂和加合离子。在负离子模式下，无需添加剂就能看到大量的类别特征性[M-H]-和苷元碎片离子。发现簇离子的形成很显著，但仅在负离子模式下。
