𝔖 Bobbio Scriptorium
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A detection method for unified chromatography: Ion mobility monitoring

✍ Scribed by Hill, Herbert H. ;St Louis, Robert H. ;Morrissey, Mark A. ;Shumate, Christopher B. ;Siems, William F. ;McMinn, Dennis G.

Publisher
John Wiley and Sons
Year
1992
Tongue
English
Weight
482 KB
Volume
15
Category
Article
ISSN
0935-6304

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✦ Synopsis

Abstract

Ion mobility monitoring has been used for detection in gas, supercritical fluid, and liquid chromatography, illustrating its potential as a method of detection for unified chromatography. Applications presented include GC‐IMD of dioxins in fly ash, SFC‐IMD of vitamin E, and HPLC‐IMD of alkylamines.

Ion mobility spectra of several mixed supercritical fluid mobile phases are also presented. Use of methanol, acetonitrile, and dichloromethane as modifiers of supercritical carbon dioxide, and use of supercritical dichlorodifluoromethane and chlorodifluoromethane as mobile phases had little effect on the reactant ion pattern at the flow rates and concentrations used in this study. Only when acetone was used as a modifier of carbon dioxide did the positive reactant ions change significantly. No effect of modifiers or mobile phase was observed for the negative reactant ions.

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