ION MOBILITY SPECTROMETRY OF ALIPHATIC AND AROMATIC-AMINES
ION MOBILITY SPECTROMETRY OF ALIPHATIC AND AROMATIC-AMINES
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DOI：
10.1021/ac00182a009
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发表时间：
1989-04-01
影响因子：
7.4
通讯作者：
KARPAS, Z
中科院分区：
文献类型：
--
作者：
KARPAS, Z
测定了脂肪胺和芳香胺的正离子迁移率谱。在150、200和250 ℃下，相对于卢剔啶（2，4-二甲胺）在空气中的降低的迁移率测定为1.95cm 2/（Vs）。在此提出将该化合物作为阳性IMS研究中迁移率量表的标准参比化合物。一个全面的减少流动性数据库的100多个胺，从这些结果和其他公布的数据。异构体和同量异位素的流动性的一些趋势进行了观察。约化迁移率按以下顺序增加：伯胺<仲胺<叔胺、直链胺<支链胺、正链胺<仲胺、脂族胺<芳族胺和胺<酰胺。最令人感兴趣的是，约化迁移率的温度依赖性对于低分子量离子是正的，对于中等质量（90-180 amu）的IOS基本上是不变的，并且对于重离子是负的。
The positive ion mobility spectra of aliphatic and aromatic amines were measured. Reduced mobilities in air at 150, 200, and 250.degree.C were determined relative to that of lutidine (2,4-dimethylamine) taken as 1.95 cm2/(V s). This compound is hereby proposed as a standard reference compound for the mobility scale in positive IMS studies. A comprehensive reduced mobility data base of more than 100 amines is presented from these resulted and other published data. A number of trends in the mobility of isomers and isobars are observed. The reduced mobility increases in the order primary < secondary < tertiary amines, linear < branched, normal < secondary, aliphatic < aromatic, and amine < amide. Most interesting is the result that the temperature dependence of the reduced mobility is positive for low molecular weight ions, is essentially invariant for intermediate mass (90-180 amu) ios, and is negative for heavy ions.