Deactivation of frits for use in capillary high-performance liquid chromatography and capillary electrochromatography with characterization by imaging with laser-induced fluorescence

被引:30
作者
Behnke, B
Johansson, J
Zhang, SG
Bayer, E
Nilsson, S
机构
[1] Univ Tubingen, Dept Organ Chem, D-72076 Tubingen, Germany
[2] Univ Lund, Lund Inst Technol, Dept Phys, S-22100 Lund, Sweden
[3] Univ Lund, Ctr Chem, Dept Tech Analyt Chem, S-22100 Lund, Sweden
关键词
frits; silica frits; capillary columns;
D O I
10.1016/S0021-9673(98)00564-0
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
Residual adsorptive activity of frits prepared by sintering silica gel particles used in capillary HPLC and electrochromatography can be significantly reduced by silanization. The adsorption of polar analytes on frits consisting of sintered normal-phase or reversed-phase silica gel before and after deactivation has been characterized by imaging with laser-induced fluorescence in combination with a charge coupled device camera. (C) 1998 Elsevier Science BN. All rights reserved.
引用
收藏
页码:257 / 259
页数:3
相关论文
共 16 条
[1]   EVALUATION OF THE PARAMETERS DETERMINING THE PERFORMANCE OF ELECTROCHROMATOGRAPHY IN PACKED CAPILLARY COLUMNS [J].
BEHNKE, B ;
GROM, E ;
BAYER, E .
JOURNAL OF CHROMATOGRAPHY A, 1995, 716 (1-2) :207-213
[2]   PRESSURIZED GRADIENT ELECTRO-HIGH-PERFORMANCE LIQUID-CHROMATOGRAPHY [J].
BEHNKE, B ;
BAYER, E .
JOURNAL OF CHROMATOGRAPHY A, 1994, 680 (01) :93-98
[3]  
BEHNKE B, UNPUB ANAL CHEM
[4]   CAPILLARY ELECTROCHROMATOGRAPHY - SOME IMPORTANT CONSIDERATIONS IN THE PREPARATION OF PACKED CAPILLARIES AND THE CHOICE OF MOBILE-PHASE BUFFERS [J].
BOUGHTFLOWER, RJ ;
UNDERWOOD, T ;
PATERSON, CJ .
CHROMATOGRAPHIA, 1995, 40 (5-6) :329-335
[5]   Capillary electrochromatography and capillary electrochromatography mass spectrometry for the analysis of DNA adduct mixtures [J].
Ding, JM ;
Vouros, P .
ANALYTICAL CHEMISTRY, 1997, 69 (03) :379-384
[6]   ON-COLUMN PREPARATION OF BONDED PHASES FOR HIGH-PRESSURE LIQUID-CHROMATOGRAPHY [J].
GILPIN, RK ;
KORPI, JA ;
JANICKI, CA .
ANALYTICAL CHEMISTRY, 1974, 46 (09) :1314-1316
[7]   Preparation and evaluation of slurry-packed liquid chromatography microcolumns with inner diameters from 12 to 33 mu m [J].
Hsieh, SC ;
Jorgenson, JW .
ANALYTICAL CHEMISTRY, 1996, 68 (07) :1212-1217
[8]   Real-time fluorescence imaging of isotachophoretic preconcentration for capillary electrophoresis [J].
Johansson, J ;
Witte, DT ;
Larsson, M ;
Nilsson, S .
ANALYTICAL CHEMISTRY, 1996, 68 (17) :2766-2770
[9]   HIGH-RESOLUTION SEPARATIONS BASED ON ELECTROPHORESIS AND ELECTROOSMOSIS [J].
JORGENSON, JW ;
LUKACS, KD .
JOURNAL OF CHROMATOGRAPHY, 1981, 218 (1-3) :209-216
[10]   SEPARATION EFFICIENCY OF SLURRY-PACKED LIQUID-CHROMATOGRAPHY MICROCOLUMNS WITH VERY SMALL INNER DIAMETERS [J].
KARLSSON, KE ;
NOVOTNY, M .
ANALYTICAL CHEMISTRY, 1988, 60 (17) :1662-1665