APPLICATIONS OF CAPILLARY ELECTROPHORESIS IN ELEMENT SPECIATION ANALYSIS OF PLANT AND FOOD EXTRACTS

被引：37

作者：

HARMS, J ^{[1
]}

SCHWEDT, G ^{[1
]}

机构：

[1] ALFRED WEGENER INST POLAR & MARINE RES,D-27570 BREMERHAVEN,GERMANY

来源：

FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY | 1994年 / 350卷 / 1-2期

关键词：

D O I：

10.1007/BF00326260

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The performance of a new separation technique for metal-speciation - capillary electrophoresis (CE) - is presented. Polyhydroxy compounds such as polyphenols and organic tanning agents can be determined in the mug/L range. Certain complexes of these compounds with iron(III) ions may also be directly or indirectly verified. The work has shown that it is possible to determine certain complexes existing in beverages (tea and coffee) by decomplexation with chelating agents (CDTA). The ligands released can be separated by CE and identified by their migration time and UV/VIS absorption spectra.

引用

页码：93 / 100

页数：8

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[No title captured]

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