Second-order capillary electrophoresis diode array detector data modeled with the Tucker3 algorithm: A novel strategy
Silvana M Azcarate1, Adriano de Araújo Gomes2, Luciana Vera-Candioti3
1Facultad de Ciencias Exactas y Naturales, Universidad Nacional de La Pampa and Instituto de Ciencias de la Tierra y Ambientales de La Pampa (INCITAP), Santa Rosa, La Pampa, Argentina.
Abstract:
Data obtained by capillary electrophoresis with diode array detection (CE-DAD) were modeled with the purpose to discriminate Argentinean white wines samples produced from three grape varieties (Torrontés, Chardonnay, and Sauvignon blanc). Thirty-eight samples of commercial white wine from four wine-producing provinces of Argentina (Mendoza, San Juan, Salta, and Rio Negro) were analyzed. CE-DAD matrices with dimensions of 421 elution times (from 1.17 to 7.39 minutes) × 71 wavelengths (from 227 to 367 nm) were joined in a three way data array and decomposed by Tucker3 method under non-negativity constraint, employing 18, 18 and six factors in the modes 1, 2 and 3, respectively. Using the scores of Tucker model, it was possible to discriminate samples of Argentinean white wine by linear discriminant analysis and Kernel linear discriminant analysis. Core element analysis of the Tucker3 model allows identifying the loading profiles in spectral mode related to Argentinean white wine samples.
Related Concept Videos
Capillary Electrophoresis: Instrumentation
High-Performance Liquid Chromatography: Types of Detectors
Gas Chromatography: Types of Detectors-I
TCD is the earliest and most widely used detector that operates by measuring the changes in the thermal conductivity of the carrier gas. When a sample compound enters the detector,...
Gas Chromatography: Types of Detectors-II
Chromatographic Methods: Classification
Chromatographic techniques are typically named by...
Electrophoresis: Overview
There...


