Extraction-Photometric Determination Of Cadmium(II) Using 1-(5-benzylthiazol-2-yl)azonaphthalen-2-ol

Abstract

Abstract – A new analytical reagent for photometric determination of cadmium(II) ions was proposed – 1-(5- benzylthiazol-2-yl)azonaphthalen-2-ol (BnTAN). The complexation reaction between cadmium(II) and BnTAN and was investigated using extraction-photometric method. A sensitive extraction-photometric technique of cadmium determination using 1-(5-benzylthiazol-2-yl)azonaphthalen-2-ol after extraction into toluene was developed. The lowest quantity of cadmium that can be determined is mmin(Cd) = 0,30 μg. The hypothetical scheme of complexation reaction was predicted. The possibility of determination of other transition metals and the selectivity of the technique was studied too.