Preconcentration technique for the determination of trace elements in natural water samples by ICP-AES

被引：0
|
作者：
S. Hari Babu
K. Suresh Kumar
K. Suvardhan
K. Kiran
D. Rekha
L. Krishnaiah
K. Janardhanam
P. Chiranjeevi
机构：
[1] S. V. University,Environmental Monitoring Laboratory, Department of Chemistry
[2] S. V. University,Department of Environmental Sciences
来源：
Environmental Monitoring and Assessment | 2007年 / 128卷
关键词：
Trace elements; Preconcentration; Morpholine dithocarbamate (mor-DTC); Inductive coupled plasma – atomic emission spectrometry; Bagasse and water samples;
D O I：
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学科分类号：
摘要：
A procedure was developed for the determination of Cd, Cu, Zn, Co, Ni, Mn, Pb and Mo in water samples by inductively coupled plasma atomic emission spectrometry (ICP-AES) after preconcentration on a morpholine dithiocarbamate (mor-DTC) supported by bagasse (Saccharam aphisinaram). The sorbed elements were subsequently eluted with 4,M HNO3 and the acid eluates were analysed by ICP–AES. The influence of various parameters such as pH, flow rate of sample, eluent concentration, volume of the sample and volume of eluent were investigated to enhance the sensitivity of the present method. A 20,mL disposable syringe served as preconcentration column. Under the optimal conditions Cd, Cu, Zn, Co, Ni, Mn, Pb and Mo in aqueous sample was concentrated about 100-fold. The sorption recoveries of elements were higher than 99.6%. The method is also applied for the analysis of natural and spiked water samples.
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页码：241 / 249
页数：8
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