ION MASS ASSIGNMENTS BASED ON MOBILITY MEASUREMENTS - VALIDITY OF PLASMA CHROMATOGRAPHIC MASS MOBILITY CORRELATIONS
ION MASS ASSIGNMENTS BASED ON MOBILITY MEASUREMENTS - VALIDITY OF PLASMA CHROMATOGRAPHIC MASS MOBILITY CORRELATIONS
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DOI：
10.1021/ac60329a026
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发表时间：
1973-01-01
影响因子：
7.4
通讯作者：
HORNING, EC
中科院分区：
文献类型：
--
作者：
GRIFFIN, GW;DZIDIC, I;HORNING, EC
对已发表的理论和实验血浆色谱数据的回顾表明，如果仅根据迁移率数据对结构无关的化合物进行质量估计，预计标准误差为±20%。对一系列多核烃离子的研究表明，这些结构相关化合物的标准误差可低一个数量级（±2%）。即使在这种情况下，仅基于迁移率数据的离子种类的识别充其量也是推测性的，应该被劝阻。然而，迁移率的测量值是样品材料的特征，并且可以在不诉诸经验“质量-迁移率”关系的情况下使用，以与气相色谱中使用保留时间相同的方式用于识别。
A review of the theoretical and experimental published plasma chromatograph data reveals that a standard error of±20% is to be expected if mass estimates for structurally unrelated compounds are made on the basis of mo-bility data alone. An investigation of a series of polynuclear hydrocarbon ions, reported in this study, indicates that the standard error for such structurally related com-pounds can be as much as an order of magnitude lower (±2%). Even in this case, identification of the ion species based solely upon mobility data is at best speculative and should be discouraged. The measured values of mobility are, however, characteristic of the sample material and can be used without resorting to an empirical “mass-mobility” relationship, for identification in the same manner as retention times are used in gas chromatography.