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Determination of Copper and Zinc Ions by Flame‐AAS After Preconcentraction Using Sodium Dodecyl Sulfate Coated Alumina Modified with 3‐((1 H ‐Indol‐3‐yl)‐3,4,5‐trimethyl)‐1 H ‐indole
Author(s) -
Ghaedi Mehrorang,
Tavallali Hossein,
Keshavarz M.,
Niknam K.
Publication year - 2009
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.200990347
Subject(s) - chemistry , nitric acid , zinc , copper , sodium dodecyl sulfate , metal ions in aqueous solution , sorption , elution , sodium , nuclear chemistry , atomic absorption spectroscopy , metal , chromatography , trace amounts , analyte , sodium diethyldithiocarbamate , inorganic chemistry , adsorption , organic chemistry , medicine , physics , alternative medicine , quantum mechanics , pathology
A sensitive and simple method for the simultaneous preconcentration of trace amount Cu 2+ and Zn 2+ ions in some real samples has been established, which is based on the sorption of Cu 2+ and Zn 2+ on 3‐((1 H ‐indol‐3‐yl)‐3,4,5‐trimethyl)‐1 H ‐indole (ITMI) loaded on sodium dodecyl sulfate (SDS) coated alumina. The metal absorbed on the complexes was eluted using 3 mol/L nitric acid. The influences of the analytical parameters including pH and sample volume were investigated. The effects of matrix ions on the retentions of the analytes were also examined. The recoveries of analytes were generally higher than 95% with a low RSD. The method has been successfully applied to content evaluation of these metals in real samples.