2-(4-Diethylaminostyryl)-1,3,3-trimethyl-5-thiocyanato-3H-indolium chloride as a new reagent for indirect spectrophotometric red-ox determination of Osmium (VI)

• Authors: Zholt Kormosh , Svitlana Korolchuk
• Languages of publication: EN

Abstracts

EN

A highly sensitive indirect spectrophotometric redox method for the determination of osmium is reported on. The method is based on the oxidation of iodide by osmium (VI) and the spectrophotometric detection of the liberated iodine in the form of complex anion associate with 2-(4-diethylaminostyryl)-1,3,3-trimethyl-5-thiocyanato-3H-indolium chloride reagent. The appropriate reaction conditions have been established. The molar absorptivity is (0.2-1.2)·105 dm3/mol·cm at 589.5 nm wavelength. The absorbance of the coloured extracts obeys the Beer's law in the range to 7.6 mg/dm3 of Os(VI).

Keywords

EN

Osmium; determination; spectrophotometry

• Publisher: De Gruyter Open
• Journal: Polish Journal of Chemical Technology
• Year: 2008
• Volume: 10
• Issue: 2
• Pages: 17-19

Dates

published

1 - 1 - 2008

online

2 - 7 - 2008

Contributors

author

Zholt Kormosh

• Department of Analytical Chemistry, Volyn National University, Voly av., 13, 43021 Lutsk, Ukraine

author

Svitlana Korolchuk

• Department of Analytical Chemistry, Volyn National University, Voly av., 13, 43021 Lutsk, Ukraine

References

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Identifiers

DOI

10.2478/v10026-008-0022-6