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Titolo: Chemometric quantitative analysis of pyridoxine HCl and thiamine HCl in a vitamin combination by principal component analysis, classical least squares, and inverse least squares techniques
Autore: Dinc, E; Baleanu, D; Onur, F;
 Indirizzi:
 Ankara Univ, Fac Pharm, Dept Analyt Chem, TR06100 Ankara, Turkey Ankara Univ Ankara Turkey TR06100 Analyt Chem, TR06100 Ankara, Turkey Univ Cankaya, Fac Arts & Sci, Dept Math & Comp Sci, TR06530 Ankara, Turkey Univ Cankaya Ankara Turkey TR06530 & Comp Sci, TR06530 Ankara, Turkey Inst Space Sci, Natl Inst Laser Plasma & Radiat Phys, R76900 Bucharest, Romania Inst Space Sci Bucharest Romania R76900 hys, R76900 Bucharest, Romania
 Titolo Testata:
 SPECTROSCOPY LETTERS
fascicolo: 3,
volume: 34,
anno: 2001,
pagine: 279  288
 SICI:
 00387010(200105)34:3<279:CQAOPH>2.0.ZU;2V
 Fonte:
 ISI
 Lingua:
 ENG
 Soggetto:
 DERIVATIVE SPECTROPHOTOMETRY; PHARMACEUTICAL PREPARATIONS; MULTIVARIATE CALIBRATION; PREDICTION METHODS; MIXTURES;
 Keywords:
 chemometric quantitative analysis; pyridoxine hydrochloride; thiamine hydrochloride; principal component analysis; classical least square and inverse least square techniques;
 Tipo documento:
 Article
 Natura:
 Periodico
 Settore Disciplinare:
 Physical, Chemical & Earth Sciences
 Citazioni:
 18
 Recensione:
 Indirizzi per estratti:
 Indirizzo: Dinc, E Ankara Univ, Fac Pharm, Dept Analyt Chem, TR06100 Ankara, Turkey Ankara Univ Ankara Turkey TR06100 Chem, TR06100 Ankara, Turkey



 Citazione:
 E. Dinc et al., "Chemometric quantitative analysis of pyridoxine HCl and thiamine HCl in a vitamin combination by principal component analysis, classical least squares, and inverse least squares techniques", SPECT LETT, 34(3), 2001, pp. 279288
Abstract
Three chemometric techniques were described for the analysis of pyridoxinehydrochloride and thiamine hydrochloride within a vitamin combination in the presence of spectral interferences. For these techniques, the training set was prepared by using synthetic mixtures containing two vitamins in multiple possible combinations for the range of 840 mu /mL in 0.1 M HCl. The absorbance values for the training set were obtained by direct measurements at 18 wavelengths in the region 222305 nm for the zero order spectra. The numerical values were calculated by using the 'Maple V' software. Mean recoveries and relative standard deviations for the principal component analysis, classical least squares and inverse least squares techniques were found as 100.7% and 0.95%; 100.5% and 1.38% and, 99.3% and 1.04 for pyridoxine hydrochloride; and 99.7% and 1.03%; 99.1% and 1.05% and, 99.6% and 1.58% for thiamine hydrochloride, respectively. These three chemometric techniques were successfully applied to vitamin tablets marketed in Turkey. The results were compared with each other and good coincidence was observed.
ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/03/20 alle ore 22:50:42