Ion mobility detection of polydimethylsilicone oligomers following supercritical fluid chromatographic separation.
Ion mobility detection of polydimethylsilicone oligomers following supercritical fluid chromatographic separation.
复制标题
超临界流体色谱分离后聚二甲基硅氧烷低聚物的离子淌度检测。
DOI：
10.1016/s0021-9673(01)93080-8
复制
发表时间：
1990
期刊：
影响因子：
--
通讯作者：
HillJr,HH
中科院分区：
文献类型：
--
作者：
Morrissey,MA;Siems,WF;HillJr,HH
将聚二甲基硅氧烷（Dow Corning 200），平均分子量2000 a.m.u.，通过同时密度和程序升温超临界流体色谱法分离，并通过离子迁移检测器检测。离子迁移谱通过傅里叶变换离子迁移谱法捕获。利用这些光谱的信息，可以选择性地检测复杂混合物中的单一化合物。检测器温度调查表明，高分子量化合物从色谱柱到检测器的有效转移，必须加热检测器的接口。使用50 μm I.D.柱、Guthrie型限流器和250°C的检测温度，分离并检测多达70种寡聚物。
A mixture of polydimethylsilicones (Dow Corning 200), average molecular weight 2000 a.m.u., was separated by simultaneous density and temperature-programmed supercritical fluid chromatography and detected by ion mobility detection. Ion mobility spectra were captured by Fourier transform ion mobility spectrometry. Using information from these spectra it was possible to selectively detect a single compound in the complex mixture. A detector temperature investigation demonstrated that, for the efficient transfer of high-molecular-weight compounds from the column to the detector, the interface to the detector must be heated. Using a 50 μm I.D. column, a Guthrie-type restrictor and a detection temperature of 250°C, as many as 70 oligomers were separated and detected.