MULTIDIMENSIONAL PACKED CAPILLARY COUPLED TO OPEN TUBULAR COLUMN SUPERCRITICAL FLUID CHROMATOGRAPHY USING A VALVE-SWITCHING INTERFACE

被引：16

作者：

JUVANCZ, Z ^{[1
]}

PAYNE, KM ^{[1
]}

MARKIDES, KE ^{[1
]}

LEE, ML ^{[1
]}

机构：

[1] BRIGHAM YOUNG UNIV,DEPT CHEM,PROVO,UT 84602

来源：

ANALYTICAL CHEMISTRY | 1990年 / 62卷 / 14期

关键词：

D O I：

10.1021/ac00213a007

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

An on-line two-dimensional supercritical fluid chromatographic system (SFC/SFC) was constructed by utilizing a rotary valve Interface to provide independent flow control of the two dimensions. A cold trap was employed to refocus solutes from single or multiple fractional cuts, after being transferred to the second dimension. Improved performance, including time savings, was achieved with a packed capillary to open tubular column arrangement and two independently controlled pumps, compared to earlier reported single-pump open tubular column SFC/SFC and packed capillary column SFC/SFC systems. The packed capillary in the first dimension provided a rapid chemical class separation, while the open tubular column in the second dimension provided high resolution of closely related isomers. © 1990, American Chemical Society. All rights reserved.

引用

页码：1384 / 1388

页数：5

共 14 条

[1]

BARTLE KD, 1989, J MICROCOL SEP, V1, P63

[2] SUPERCRITICAL FLUID CHROMATOGRAPHIC DETERMINATION OF HYDROCARBON GROUPS IN GASOLINES AND MIDDLE DISTILLATE FUELS [J].