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- E-ISSN 2288-8985
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Development of New Separation Technique, Modifier Composition Programming in Supercritical Fluid Chromatography
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
1997, v.10 no.5, pp.350-356
Kim,
H., &
Pyo,
D.
(1997). Development of New Separation Technique, Modifier Composition Programming in Supercritical Fluid Chromatography. Analytical Science and Technology, 10(5), 350-356.
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Abstract
Supercritical Fluid Chromatography(SFC) has been developed as an analytical technique for the compounds that is difficult to analyze by conventional chromatography. Since supercritical fluid <TEX>$CO_2$</TEX> is difficult to elute solutes with high polarity, modified supercritical <TEX>$CO_2$</TEX>, was used as a mobile phase. In conventional method, silica column which is saturated with modifier was used. However, with this method, we can not control the quantity of modifier. In this paper, we developed a new method which can control quantity of modifier mixed in supercritical fluid <TEX>$CO_2$</TEX>. The quantity of <TEX>$H_2O$</TEX> mixed was measured with amperometric microsensor which was made by perflurosulfonate ionomer(PFSI) film. we have also obtained a good supercritical fluid chromatogram of PAH mixture by use of a modifier composition programming method.
- keywords
- supercritical fluid chromatography, modifier programming
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