Quantitation of Aluminium Content in Waters and Soft Drinks by Spectrophotometry Using Eriochrome Cyanine R

摘要

ABSTRACT A precise, sensitive and selective spectrophotometric method for determination of aluminium using eriochrome cyanine R (ECR) as a chromogenic reagent in the presence of N,N dodecyl trimetylammonium bromide (DTAB) was developed. The Al-ECR complex at pH 5 gave an maximum absorption at 584 nm. The effective parameters of the experimental conditions such as type and amount of surfactant, pH and concentration of ECR were investigated. In the optimized condition of the method presented a li.