Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
SIMULTANEOUS DETERMINATION OF MIXTURES OF ACIDS BY POTENTIOMETRIC TITRATION
Autore:
NI YN;
Indirizzi:
NANCHANG UNIV,DEPT CHEM JIANGXI 330047 NANCHANG PEOPLES R CHINA
Titolo Testata:
Analytica chimica acta
fascicolo: 1-3, volume: 367, anno: 1998,
pagine: 145 - 152
SICI:
0003-2670(1998)367:1-3<145:SDOMOA>2.0.ZU;2-S
Fonte:
ISI
Lingua:
ENG
Soggetto:
ORTHOGONAL ARRAY DESIGN; LEAST-SQUARES METHODS; CHEMOMETRIC METHOD; MICROWAVE DISSOLUTION; BIOLOGICAL SAMPLES; EQUAL VOLUMES; AUTOMATIC TITRATIONS; STEPWISE ADDITION; SPECTRAL ANALYSES; BASE TITRATIONS;
Keywords:
MIXTURES OF ACIDS; POTENTIOMETRIC TITRATION; CHEMOMETRICS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
33
Recensione:
Indirizzi per estratti:
Citazione:
Y.N. Ni, "SIMULTANEOUS DETERMINATION OF MIXTURES OF ACIDS BY POTENTIOMETRIC TITRATION", Analytica chimica acta, 367(1-3), 1998, pp. 145-152

Abstract

Multivariate calibration methods were used for the determination of mixtures of acids by potentiometric titration. The linear titration equation of mixtures of acids was derived and the potentiometric data obtained were processed by multivariate calibration approaches such as class least squares (CLS), principal component regression (PCR) and partial least squares (PLS). These models for multivariate calibration were obtained from the potentiometric titration data of a set of samples with known composition and were then used to predict the concentrations of components in unknown samples. The practical utility of this method was demonstrated for the simultaneous determination of two five-component systems with concentration ranges 2.5 x 10(-4)-1.5 x 10(-3) moll(-1) and acceptable results were obtained. (C) 1998 Elsevier ScienceB.V.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 03/07/20 alle ore 01:35:21