SPECTROPHOTOMETRIC DETERMINATION OF TRACE AMOUNTS OF PLATINUM(IV) WITH IODIDE AND RHODAMINE 6G

Authors
PILLAI AR OUSEPH PP RAMACHANDRAN KK RAO TP
Citation
Ar. Pillai et al., SPECTROPHOTOMETRIC DETERMINATION OF TRACE AMOUNTS OF PLATINUM(IV) WITH IODIDE AND RHODAMINE 6G, Indian journal of chemistry. Sect. A: Inorganic, physical, theoretical & analytical, 36(12), 1997, pp. 1103-1105
Citations number
12
Journal title
Indian journal of chemistry. Sect. A: Inorganic, physical, theoretical & analytical
ISSN journal
03764710 → ACNP
Volume
36
Issue
12
Year of publication
1997
Pages
1103 - 1105
Database
ISI
SICI code
0376-4710(1997)36:12<1103:SDOTAO>2.0.ZU;2-U
Abstract
A sensitive and selective procedure for spectrophotometric determinati on of platinum (IV) with rhodamine 6G in presence of iodide has been d escribed. The absorbance is measured at 575 nm and the molar absorptiv ity is found to be 1.26x10(5) l mol(-1)cm(-1). The complex system obey s Beer's law in the range 0-12 mu g of platinum (IV) present in 25 ml of final solution. The effect of pH and concentration of iodide and rh odamine 6G have been studied. The method has been applied successfully to the determination of platinum (IV) in the standard platinum carbon powder (platinum catalyst).