SIMULTANEOUS DETERMINATION OF RHODIUM AND GOLD BY DERIVATIVE SPECTROPHOTOMETRY METHOD


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Özgür M. , Turak F.

Reviews In Analytical Chemistry, cilt.3, ss.157-166, 2003 (SCI Expanded İndekslerine Giren Dergi)

  • Cilt numarası: 3 Konu: 22
  • Basım Tarihi: 2003
  • Dergi Adı: Reviews In Analytical Chemistry
  • Sayfa Sayısı: ss.157-166

Özet

Simultaneous Determination of Rhodium and Gold

micro environment of reagents and analytes, and control the reactivity,

equilibrium and pathway of chemical or photochemical processes /5,6/.

In the present paper, the reactions of Au (III) and Rh (III) with p-DABR

in the presence of cationic [cetyltrimethylammonium bromide, CTAB]

surfactant have been studied. Simultaneous photometric determination of Au

(III) and Rh (III) is hampered due to spectral overlap of their complexes. In

such cases spectrophotometry coupled with derivative techniques is useful in

analysis of such mixtures Π-91. In this work derivative spectrophotometry

was also used to improve the sensitivity and selectivity /ΙΟ,II/. As the

proposed methods are practically free from interferences, they have been

applied to Rh (III) and Au (III) determination in synthetic samples.