INTERSECTION POINT METHOD (IPM) - THEORETICAL BASIS AND APPLICATION TO SPECTROPHOTOMETRIC ANALYSES

Authors
CERDANVIDAL A MAURIAUCEJO AR LLOBATESTELLES M PASCUALMARTI MC
Citation
A. Cerdanvidal et al., INTERSECTION POINT METHOD (IPM) - THEORETICAL BASIS AND APPLICATION TO SPECTROPHOTOMETRIC ANALYSES, Fresenius' journal of analytical chemistry, 357(6), 1997, pp. 572-576
Citations number
10
Categorie Soggetti
Chemistry Analytical
Journal title
Fresenius' journal of analytical chemistry → ACNP
ISSN journal
09370633
Volume
357
Issue
6
Year of publication
1997
Pages
572 - 576
Database
ISI
SICI code
0937-0633(1997)357:6<572:IPM(-T>2.0.ZU;2-5
Abstract
The Intersection Point Method (IPM) is a new method for the determinat ion of an analyte in the presence of several unknown interferences. Th e method is based on the Apparent Content Curves (ACC) from derivative signals. To test the proposed procedure an analysis of mixtures of in dicators with strong spectral overlapping was carried out. Results obt ained agree with the theoretical values. Besides, the determination of caffeine in several pharmaceuticals by IPM provides good results.