Studies of Zinc(II) in Pharmaceutical and Biological Samples by Extractive Spectrophotometry: Using Pyridoxal-4-phenyl-3-thiosemicarbazone as Chelating Reagent
@article{Sarma2006StudiesOZ, title={Studies of Zinc(II) in Pharmaceutical and Biological Samples by Extractive Spectrophotometry: Using Pyridoxal-4-phenyl-3-thiosemicarbazone as Chelating Reagent}, author={Loka Subramanyam Sarma and Jyothi Rajesh Kumar and Koduru Janardhan Reddy and Thenepalli Thriveni and Ammireddy Varada Reddy}, journal={Journal of the Brazilian Chemical Society}, year={2006}, volume={17}, pages={463-472} }
Piridoxal-4-fenil-3-tiossemicarbazona (PPT) e proposto como um novo reagente sensivel para a determinacao espectrofotometrica de zinco(II). PPT reage com zinco(II) no intervalo de pH entre 5,0 e 6,0, para formar um complexo colorido amarelo, o qual foi adequadamente extraido em n-butanol. A absorbância do complexo Zn(II)-PPT foi medida em diferentes intervalos de tempo, a 430 nm, para averiguar a estabilidade do complexo. Foi observado que o desenvolvimento da cor foi instantâneo e estavel por…
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