6533b834fe1ef96bd129cc2f

RESEARCH PRODUCT

Principal component analysis for the selection of variables in the application of the H-point and generalised H-point standard addition method

Pilar Campíns-falcóF. Blasco-gómezFrancisco Bosch-reigLuisa Gallo-martinez

subject

AnalyteChemistryStandard additionPrincipal component analysisStatisticsRange (statistics)A priori and a posterioriBinary numberBiological systemTernary operationSelection (genetic algorithm)Analytical Chemistry

description

The present paper deals with the selection of variables for the H-point and generalised H-point standard additions methods (HPSAM and GHPSAM, respectively). Both methods are applied for the resolution of spectroscopic interfered signals in the UV-vis range. The HPSAM is a suitable method for the resolution of binary and ternary mixtures when the interferent is known. The GHPSAM is applied for the resolution of samples that contain unknown interferents. In this paper, a method based on the study of a principal components analysis (PCA) for the selection of variables for the HPSAM and GHPSAM is proposed. The PCA results show the isolation of the analyte signal from the sample signal, achieved by the application of the HPSAM and GHPSAM. It is showed that by means of the score and loading plots, it is possible to select the most appropriate variables without a priori establishing any condition.

yearjournalcountryeditionlanguage
2000-03-08Talanta
https://doi.org/10.1016/s0039-9140(00)00481-1