Fatma Turak, Merve Özgur
2003
Citations
0
Influential Citations
4
Citations
Journal
Reviews in Analytical Chemistry
Abstract
Rhodanine and its derivatives are used for the quantitative analysis of silver, gold (III), palladium (II), copper (1) and (II), rhodium (III), mercury and other ions / I/. p-dimethylaminobenzylidene rhodanine (p-DABR) was first proposed as an analytical reagent by Feigl. It is widely used for separation and spectrophotometric determination of Ag and Pd. It is also used as a reagent for Au, Hg and Pt, for indirect determination of CI" and CN", as an acid-base indicator in acetic acid medium, and in selective resins /2,3/. Gelatin or gum Arabic is utilized to stabilize the formed complexes. Drawbacks of these methods are the limited solubility of the reagent and instability of the reaction products /4/. On the other hand, surfactants and micellar systems are currently used to improve the sensitivity and/or selectivity of the spectrophotometric methods for metal ion determination. Such systems manipulate the solubility and