Reaction of 2,3-dimethylmercaptopropionic acid with methylene blue as an indicator reaction for the kinetic determination of selenium

Citation
Df. Gainutdinova et al., Reaction of 2,3-dimethylmercaptopropionic acid with methylene blue as an indicator reaction for the kinetic determination of selenium, J ANALYT CH, 56(6), 2001, pp. 564-566
Citations number
3
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
JOURNAL OF ANALYTICAL CHEMISTRY
ISSN journal
10619348 → ACNP
Volume
56
Issue
6
Year of publication
2001
Pages
564 - 566
Database
ISI
SICI code
1061-9348(200106)56:6<564:RO2AWM>2.0.ZU;2-W
Abstract
A new indicator reaction between 2,3-dimethylmercaptopropionic acid and Met hyl Blue was proposed for the kinetic determination of selenium. The optima l reaction conditions were found. A linear relationship was observed betwee n the induction period and the Se(IV) concentration in the range between 0. 9 and 9.6 ng/mL Se. Masking with EDTA and solvent extraction with diethyldi thiophosphoric acid can he used for the separation of interfering elements forming complexes with the reagent.