PERTANIKA JOURNAL OF TROPICAL AGRICULTURAL SCIENCE
e-ISSN 2231-8542
ISSN 1511-3701
Enhancement of Cadmium and Zinc Flame Spectrometric Signals by Using APDTC-nButylamine-MIBK Extractants
Tan Wee Tee and Wong See Keong
Pertanika Journal of Tropical Agricultural Science, Volume 13, Issue 1, April 1990
Keywords: Signal enhancement, cadmium, zinc, solvent extraction, nbutylamine, APDTC, MIBK
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Ammonium pyrrolidine-dithiocarbamate (APDTC) and methyl-isobutyl-ketone (MIBK) extractant were found to be considerably improved by the addition of nbutylamine especially for the chemical analysis of Cd(II) and Zn(II) ions. Solvent extraction of the bivalent metal ions is a function of pH and the concentration of APDTC and nbutylamine. Cd(II) and Zn(II) ions exhibit considerable flame spectrometric signal enhancement for pH ranges from 7 to 12 and 2 to 12 respectively when APDTC-nbutylamine-MIBK was used as the extractant in place of APDTC-MIBK. The signal enhancement observed may be interpreted in terms of the formation of synergistic amine adduct and/or mixed solvent effect
ISSN 1511-3701
e-ISSN 2231-8542
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