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Spectrophotometric determination of iridium after complexation and membrane filtration
Analytical Chemistry Research
A simple, ultra sensitive and selective method for the spectrophotometric determination of Ir 3+ in various synthetic and environmental samples was reported. The analyte ions were collected on a membrane filter in the form of their red complex with 5-(2-benzothiazolyl-azo)8-hydroxy-quinoline (BTAHQ), and the absorption spectra of the colored membrane filters were acquired. Effects of pH value, sample volume, and amount of BTAHQ were examined in order to optimize sensitivity. The interference bydoi:10.1016/j.ancr.2014.10.001 fatcat:rkyh574q7zgwzkvpuzld3ovywu