NMR IMAGING OF THE CHROMATOGRAPHIC PROCESS - DEPOSITION AND REMOVAL OF GADOLINIUM IONS ON A REVERSED-PHASE LIQUID-CHROMATOGRAPHIC COLUMN

被引：34

作者：

BAYER, E ^{[1
]}

BAUMEISTER, E ^{[1
]}

TALLAREK, U ^{[1
]}

ALBERT, K ^{[1
]}

GUIOCHON, G ^{[1
]}

机构：

[1] UNIV TUBINGEN,INST ORGAN CHEM,D-72076 TUBINGEN,GERMANY

来源：

JOURNAL OF CHROMATOGRAPHY A | 1995年 / 704卷 / 01期

关键词：

D O I：

10.1016/0021-9673(95)00200-7

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

NMR imaging permits the visualization of the adsorption processes which take place in chromatographic columns during the adsorption and concentration of strongly retained analytes from their solutions in weak solvents and during the desorption of these compounds as more concentrated bands in a strong mobile phase. The results obtained demonstrate that the surface of stationary phases is not homogeneous and that column beds are not homogeneously packed. These deviations from an idealized behavior must be taken into account in the interpretation of the results.

引用

页码：37 / 44

页数：8

共 21 条

[1]

Ilg, Maier-Rosenkranz, Muller, Albert, Bayer, Hopfel, J. Magn. Reson., 96, (1992)

[2]

Tallarek, Baumeister, Albert, Bayer, Guiochon, J. Chromatogr. A, 696, (1995)

[3]

Baumeister, Klose, Albert, Bayer, Guiochon, J. Chromatogr. A, 694, (1995)

[4]

Runge, Enhanced Magnetic Resonance Imaging, (1989)

[5]

Aime, Botta, Ermondi, J. Magn. Reson., 92, (1991)

[6]

Gadian, Payne, Bryant, Young, Carr, Bydder, J. Comput. Assist. Tomogr., 9, (1985)

[7]

Haase, Frahm, Matthaei, Hanicke, Merboldt, J. Magn. Reson., 67, (1986)

[8]

Vora, Wukovnig, Finn, Emran, Boothe, Kotari, J. Chromatogr., 369, (1986)

[9]

Lauffer, Chem. Rev., 87, (1987)

[10]

Koenig, Baglin, Brown, Brewer, Magn. Reson. Med., 1, (1984)

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