METAL-LOADED SILICAS FOR ONLINE COUPLING OF ENRICHMENT PRECOLUMN AND ANALYTICAL COLUMNS

被引：3

作者：

BAGNOUD, MA

HAERDI, W

机构：

[1] Department of Inorganic, Analytical and Applied Chemistry, University of Geneva, 1211 Geneva 4, 30, Quai E. Ansermet

来源：

INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY | 1990年 / 38卷 / 02期

关键词：

metal-loaded silica; Sample handling; trace analysis;

D O I：

10.1080/03067319008026918

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The preparation of two metal-loaded silicas is presented. The first one, iron-8-hydroxyquinoline silica (Si-Ox-Fe) is used in a small pre-column for selective enrichment of catechol derivatives. The other one, copper-cyclam silica (Si-Cy-Cu) acts as stationary phase for outer-sphere ligand exchange chromatography. The on-line coupling of these two silicas makes the HPLC analysis of acid derivatives of catechol in urine more specific and the analysis can be done without any pretreatment of the sample. © 1990, Taylor & Francis Group, LLC. All rights reserved.

引用

页码：97 / 104

页数：8

共 16 条

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[9] PRE-COLUMN TECHNOLOGY IN HIGH-PERFORMANCE LIQUID-CHROMATOGRAPHY FOR THE DETERMINATION OF PHENYLUREA HERBICIDES IN WATER IN THE PRESENCE OF THEIR ANILINES
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FREI, RW
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[J]. JOURNAL OF CHROMATOGRAPHY, 1984, 284 (01): : 73 - 86
[10] USE OF A PRECOLUMN PACKED WITH MERCURY(II)-8-HYDROXYQUINOLINE FOR THE SELECTIVE ONLINE TRACE ENRICHMENT OF 2-MERCAPTOBENZIMIDAZOLE IN LIQUID-CHROMATOGRAPHY
NIELEN, MWF
BLEEKER, R
FREI, RW
BRINKMAN, UAT
[J]. JOURNAL OF CHROMATOGRAPHY, 1986, 358 (02): : 393 - 400

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