✦ LIBER ✦
Spectrophotometric determination of tin(IV) by extraction of the ternary tin/iodide/5,7-dichloro-8-quinolinol complex
✍ Scribed by A.M Gutierrez; M.V Laorden; A Sanz-Medel; J.L Nieto
- Publisher
- Elsevier Science
- Year
- 1986
- Tongue
- English
- Weight
- 330 KB
- Volume
- 184
- Category
- Article
- ISSN
- 0003-2670
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✦ Synopsis
The characteristics of the ternary complexes formed by fluoride, bromide, iodide and thiocyanate with tin(IV) and 5,7-dichloro-8-quinolinol (HCQ) have been studied. A spectrophotometric method is proposed for the determination of tin(IV) (l-20 pg ml-'), based on the extraction into chloroform of the tin/iodide/HCQ complex. Aluminium, bismuth and lead do not interfere, but antimony, copper, iron(II1) and fluoride do. Copper and iron can be eliminated by preliminary extraction in the absence of iodide.