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.
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页码：244 / 249
页数：6
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