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Applied Spectroscopy

Applied Spectroscopy

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  • Vol. 43, Iss. 5 — May. 1, 1989
  • pp: 737–741

Microwave-Induced Plasma as an Elemental Detector for Packed-Column Supercritical Fluid Chromatography

Curtis B. Motley, Mehdi Ashraf-Khorassani, and Gary L. Long

Applied Spectroscopy, Vol. 43, Issue 5, pp. 737-741 (1989)


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Abstract

The direct introduction of supercritical fluid chromatography effluent from a packed DeltaBond 300 phenyl column with the MIP as an elemental detector, using a high efficiency TM010 cavity, has been employed for SFC separations. A toroidal plasma is sustained in the cavity by using an ICP type torch and an argon auxiliary flow (2 L/min) over all pressures (1500-5000 psi). Methanol modifier concentrations (0-5%) have also been studied. Studies of the effects of CO2 on excitation temperature, electron number density, and analyte emission signals are presented. In addition, the background broad-hand emission signal with 100% CO2 and a methanol modifier up to 5% are presented.

Citation
Curtis B. Motley, Mehdi Ashraf-Khorassani, and Gary L. Long, "Microwave-Induced Plasma as an Elemental Detector for Packed-Column Supercritical Fluid Chromatography," Appl. Spectrosc. 43, 737-741 (1989)
http://www.opticsinfobase.org/as/abstract.cfm?URI=as-43-5-737


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