Spectrophotometric analysis of mixtures of two components with extensively or completely overlapping spectra by the H-point standard additions method |
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Authors: | Pilar Campíns Falcó Francisco Bosch Reig and Ana Molina Benet |
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Institution: | (1) Department of Analytical Chemistry, Faculty of Chemistry, University of Valencia, E-46100 Buriassot, Valencia, Spain |
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Abstract: | Summary This paper discusses the requirements and scope of application of the H-Point Standard Additions Method (HPSAM) for resolving binary mixtures. Various mixtures of dyes with extensively or completely overlapping spectra were assayed with accurate, precise results. The method thus developed was also applied to the spectrophotometric resolution of binary mixtures of phenol and o-cresol, the absorption bands of which lie in similar positions and feature similar absorptivities. |
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