Add time:08/04/2019         Source:sciencedirect.com

A spectrophotometric study of the Cd(II) and Cu(II) complex of a new reagent, 2-(5-bromo-2-pyridylazo)-5-diethylamino phenol (5-Br-PADAP) in the presence of polyglycol octylphenyl ether (OP) is presented. A reddish binary complex is formed at pH 9 and shows maximal absorbance at 560 nm with molar absorptivity of 1.16 × 105 · mol−1 · cm−1 liter (Cd), 1.5 × 105 mol−1 · cm−1 · liter (Cu). Beer's law is followed over the range 0.0 to 20 μg cadmium(II) and 0.0–18 μg copper(II). The continuous variation method and molar ratio method showed that the metal ligand ratio is 1:2; ordinarily, most ions do not interfere with the determination and the method can be applied for direct spectrophotometric determination of cadmium(II) and copper(II) in actual samples and the results obtained are satisfactory.

We also recommend Trading Suppliers and Manufacturers of 2-(5-BROMO-2-PYRIDYLAZO)-5-(DIETHYLAMINO)PHENOL (cas 14337-53-2). Pls Click Website Link as below: cas 14337-53-2 suppliers