Journal
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
Volume 81, Issue 3, Pages 233-242Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/03067310108044345
Keywords
copper (II); solid phase extraction; Salphen; flame atomic absorption spectrometry; waste water; black tea
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A simple and reliable method for the rapid and selective separation of Cu(II) ion from water, waste water and black tea by using octadecyl silica membrane disks modified with an H(2)Salphen (L) and flame atomic absorption spectrometry is presented. Extraction efficiency and the influence of flow rate, pH and minimum amount of stripping acid were investigated. Maximum capacity of the membrane disks modified by 2 mg of (L) was found to be 487.5 +/- 7.5 mug of copper. The limit of detection of proposed method is 0.07 ng/cm(3).
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