CHROMATOGRAPHY OF METAL-CHELATES .1. TLC OF METAL-CHELATES OF 8-MERCAPTOQUINOLINE WITH THE 1ST, 2ND AND 8TH SUBGROUP AND THE 4TH MAIN-GROUP

被引：14

作者：

KONIG, KH

SCHNEEWEIS, G

STEINBRECH, B

CHAUDHURI, P

EHMCKE, HU

机构：

[1] Anorg.-Chem. Institut 1 der Universität, Frankfurt a.M., D-6000, Niederurseler Hang

来源：

FRESENIUS ZEITSCHRIFT FUR ANALYTISCHE CHEMIE | 1979年 / 297卷 / 2-3期

关键词：

Chromatographie; Dünnschicht; Trenn; der Metallchelate von 8-Mercaptochinolin;

D O I：

10.1007/BF00483594

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

8-Mercaptoquinoline (thiooxine) is qualified for the detection and separation of metals by thin-layer chromatography. It forms neutral complexes in definite composition, which are insoluble in aqueous solution, but readily soluble in CHCl3. Precipitation and extraction are dependent on the pH value, whereby pre-separation of metals is possible. The thin-layer chromatographic behaviour of 17 metal chelates is described. No spraying is necessary for detection, since the complexes show different, characteristic colours. The visual detection limits of the metals are between 5 and 20 ng (fluorescence quenching at 254 nm). Spectrophotometric determination of the chromatograms lowers the detection limit by one power of ten. © 1979 Springer-Verlag.

引用

页码：138 / 143

页数：6

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