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Titolo:
ORTHOGONAL ARRAY DESIGN AS A CHEMOMETRIC METHOD FOR THE OPTIMIZATION OF ANALYTICAL PROCEDURES .1. 2-LEVEL DESIGN AND ITS APPLICATION IN MICROWAVE DISSOLUTION OF BIOLOGICAL SAMPLES
Autore:
LAN WG; WONG MK; CHEN N; SIN YM;
Indirizzi:
NATL UNIV SINGAPORE,DEPT CHEM,KENT RIDGE SINGAPORE 0511 SINGAPORE NATL UNIV SINGAPORE,DEPT CHEM SINGAPORE 0511 SINGAPORE NATL UNIV SINGAPORE,DEPT ZOOL SINGAPORE 0511 SINGAPORE
Titolo Testata:
Analyst
fascicolo: 8, volume: 119, anno: 1994,
pagine: 1659 - 1667
SICI:
0003-2654(1994)119:8<1659:OADAAC>2.0.ZU;2-0
Fonte:
ISI
Lingua:
ENG
Soggetto:
PERFORMANCE LIQUID-CHROMATOGRAPHY; FACTORIAL DESIGN;
Keywords:
2-LEVEL ORTHOGONAL ARRAY DESIGN; OPTIMIZATION; MICROWAVE DISSOLUTION; SELENIUM DETERMINATION; HYDRIDE-GENERATION ATOMIC ABSORPTION SPECTROMETRY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
47
Recensione:
Indirizzi per estratti:
Citazione:
W.G. Lan et al., "ORTHOGONAL ARRAY DESIGN AS A CHEMOMETRIC METHOD FOR THE OPTIMIZATION OF ANALYTICAL PROCEDURES .1. 2-LEVEL DESIGN AND ITS APPLICATION IN MICROWAVE DISSOLUTION OF BIOLOGICAL SAMPLES", Analyst, 119(8), 1994, pp. 1659-1667

Abstract

The theory and methodology of two-level orthogonal array design for the optimization of analytical procedures were developed. In the theoretical part, the matrix of the two-level orthogonal array design is described while orthogonality is proved by a linear regression model. Then, the assignment of experiments in a two-level orthogonal array design and the application of the triangular table associated with the corresponding orthogonal array matrix are illustrated, followed by the data analysis strategy, in which significance of the different factor effects is quantitatively evaluated by the analysis of variance (ANOVA) technique and the percentage contribution method. Finally, a linear regression equation representing the response surface is established to estimate the factors that have a significant influence. In the application section, microwave dissolution fog the determination of selenium in biological samples by hydride generation atomic absorption spectrometry as a practical example is employed to demonstrate the application of the proposed two-level orthogonal array design in analytical chemistry.

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Documento generato il 14/08/20 alle ore 08:06:30