Electrothermal atomic-absorption determination of lead and cadmium with preliminary micellar extraction

被引：2

作者：

Gorbachevskii, A. N. ^{[1
]}

Kushchevskaya, N. F.

Doroshchuk, V. A.

机构：

[1] Natl Acad Sci Ukraine, Dumanskii Inst Colloid & Water Chem, Kiev, Ukraine

来源：

JOURNAL OF WATER CHEMISTRY AND TECHNOLOGY | 2009年 / 31卷 / 04期

关键词：

CLOUD-POINT EXTRACTION; PRECONCENTRATION; SPECTROMETRY; OPTIMIZATION; MERCURY;

D O I：

10.3103/S1063455X09040067

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The article investigated micellar extraction of lead and cadmium by the phases of nonionic surface-active substance Triton X-100 in the presence of pyridylazo reagents. It is shown that complete joint removal of metals into the micellar phase is observed within pH interval 9-11 when using hydrophobic 1-(2-pyridylazo)-2-naphthol. Optimized are conditions of electrothermal atomization of lead and cadmium in the micellar phase. A technique was proposed of atomic-absorption determination of metals in waters with preliminary micellar-extraction concentration at cloud temperature.

引用

页码：244 / 249

页数：6

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