Thallimetric photochemical oxidations in the analysis of ternary mixtures of hydrogen peroxide, oxalate and phosphite

✍ Scribed by M.S. Prasada Rao; A. Rama Mohan Rao

• Publisher: Elsevier Science
• Year: 1992
• Tongue: English
• Weight: 343 KB
• Volume: 257
• Category: Article
• ISSN: 0003-2670
• DOI: 10.1016/0003-2670(92)80165-4

✦ Synopsis

Abstrad

Based on the fact that the thalhmetnc oxldattons of hydrogen peroxide, oxalate and phosptute proceed selectively m the presence of Fe(II), chloride and bronude, titmnetrlc and spectrophotometrlc methods are described for the analysis of ternary mixtures of hydrogen peroxide, oxalate and phosphate m the mm01 and pmol ranges, respectively In both methods thalhum(II1) IS used as the oxidant and the reduced thalhum(I) IS determmed oxlchmetruzally with potassmm bromate m the tltmnetrlc method and by measuring the absorbance of thalhum(II1) at 260 nm in the presence of 0 1 M HCl and 1 M HCIO, m the spectrophotometnc method