Determination of mercury by cold vapour atomic absorption spectrometry after preconcentration with dithizone immobilized on surfactant-coated alumina

被引:143
作者
Manzoori, JL [1 ]
Sorouraddin, MH [1 ]
Shabani, AMH [1 ]
机构
[1] Univ Tabriz, Fac Chem, Dept Analyt Chem, Tabriz, Iran
关键词
mercury; dithizone; sodium dodecyl sulfate; cold vapour atomic absorption spectrometry;
D O I
10.1039/a707520k
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Mercury(II) and methylmercury cations at the sub-ppb level were adsorbed quantitatively from aqueous solution onto a column packed with dithizone immobilized on sodium dodecyl sulfate coated alumina. The trapped mercury was then back-extracted into the aqueous phase with 1 hr hydrobromic acid and determined by cold vapour atomic absorption spectrometry by utilizing the reaction with sodium tetrahydroborate. Mercury(II) and methylmercury cations were completely recovered from water with a preconcentration factor of 100. The analytical procedure was applied to the determination of mercury(II) and methylmercury in river and tap water.
引用
收藏
页码:305 / 308
页数:4
相关论文
共 35 条
[21]  
MAGOS L, 1972, J ASSOC OFF ANA CHEM, V55, P966
[22]   CHROMIUM SPECIATION BY A SURFACTANT-COATED ALUMINA MICROCOLUMN USING ELECTROTHERMAL ATOMIC-ABSORPTION SPECTROMETRY [J].
MANZOORI, JL ;
SOROURADDIN, MH ;
SHEMIRANI, F .
TALANTA, 1995, 42 (08) :1151-1155
[23]   EXTRACTION OF MERCURY FROM FISH FOR ATOMIC-ABSORPTION SPECTROMETRIC DETERMINATION [J].
MATSUNAGA, K ;
ISHIDA, T ;
ODA, T .
ANALYTICAL CHEMISTRY, 1976, 48 (09) :1421-1423
[24]   DETERMINATION OF NANOGRAM QUANTITIES OF MERCURY IN SEA-WATER [J].
OLAFSSON, J .
ANALYTICA CHIMICA ACTA, 1974, 68 (01) :207-211
[26]   EXTRACTION OF MERCURY BY DITHIZONE RETAINED ON SILICA GEL [J].
PIERCE, TB ;
PECK, PF .
ANALYTICA CHIMICA ACTA, 1962, 26 (06) :557-&
[27]   APPLICATION OF CHELATE SYSTEMS TO PARTITION CHROMATOGRAPHY - PRELIMINARY PAPER [J].
PIERCE, TB .
ANALYTICA CHIMICA ACTA, 1961, 24 (02) :146-&
[28]   Dithizone-anchored poly(vinylpyridine) as a chelating resin for the preconcentration and separation of gold(III) from platinum(IV), copper(II) and mercury(II) [J].
Shah, R ;
Devi, S .
ANALYST, 1996, 121 (06) :807-811
[29]   Preconcentration and separation of palladium(II) and platinum(IV) on a dithizone anchored poly(vinylpyridine)-based chelating resin [J].
Shah, R ;
Devi, S .
ANALYTICA CHIMICA ACTA, 1997, 341 (2-3) :217-224
[30]   ESTIMATION OF MERCURY IN BIOLOGICAL MATERIAL BY NEUTRON ACTIVATION ANALYSIS [J].
SMITH, H .
ANALYTICAL CHEMISTRY, 1963, 35 (06) :635-&