FLOW-INJECTION SANDWICH TECHNIQUE APPLIED TO INDIRECT VISIBLE SPECTROPHOTOMETRIC DETERMINATIONS - BROMIMETRIC AND IODIMETRIC DETERMINATION OF SULFITE

Authors
DAVIES AE FOGG AG
Citation
Ae. Davies et Ag. Fogg, FLOW-INJECTION SANDWICH TECHNIQUE APPLIED TO INDIRECT VISIBLE SPECTROPHOTOMETRIC DETERMINATIONS - BROMIMETRIC AND IODIMETRIC DETERMINATION OF SULFITE, Analytica chimica acta, 318(1), 1995, pp. 55-62
Citations number
32
Categorie Soggetti
Chemistry Analytical
Journal title
Analytica chimica acta → ACNP
ISSN journal
00032670
Volume
318
Issue
1
Year of publication
1995
Pages
55 - 62
Database
ISI
SICI code
0003-2670(1995)318:1<55:FSTATI>2.0.ZU;2-2
Abstract
Use of the now injection sandwich technique is reviewed. A novel appli cation to indirect determinations, in which an excess of a monitorand which is not the determinand is formed on-line and reacted on-line wit h the determinand, has been illustrated using the on-line spectrophoto metric iodimetric and bromimetric determination of sulphite (> 5 X 10( -6) M). The full (control) monitorand signal is obtained at one bounda ry and the signal in the presence of determinand is obtained at the ot her boundary. Compensation is made for refractive index effects.