ON THE EVALUATION OF B.E.T. CONSTANTS FROM THE B.E.T. ISOTHERM EQUATION
It is shown that the conventional (or unweighed) least squares method must not be used to evaluate the B.E.T. constants, Xm and C, when using a rearranged linear B.E.T. plot recently suggested in the literature. This is illustrated using literature data on water sorption in several foods. In this ca...
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1977
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Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00221147_v42_n5_p1387_IGLESIAS http://hdl.handle.net/20.500.12110/paper_00221147_v42_n5_p1387_IGLESIAS |
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paper:paper_00221147_v42_n5_p1387_IGLESIAS2023-06-08T14:46:00Z ON THE EVALUATION OF B.E.T. CONSTANTS FROM THE B.E.T. ISOTHERM EQUATION Iglesias, Héctor Arturo Boquet, Reinaldo It is shown that the conventional (or unweighed) least squares method must not be used to evaluate the B.E.T. constants, Xm and C, when using a rearranged linear B.E.T. plot recently suggested in the literature. This is illustrated using literature data on water sorption in several foods. In this case a semi‐weighted (or weighted) least squares analysis becomes necessary. It is also shown that the unweighted least squares analysis should not be applied even to the familiar linear B.E.T. plot. In this particular case, however, and because of a fortuitous coincidence, this procedure leads to not significant differences — at least in food research — in the numerical values. Copyright © 1977, Wiley Blackwell. All rights reserved Fil:IGLESIAS, H.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:BOQUET, R. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 1977 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00221147_v42_n5_p1387_IGLESIAS http://hdl.handle.net/20.500.12110/paper_00221147_v42_n5_p1387_IGLESIAS |
institution |
Universidad de Buenos Aires |
institution_str |
I-28 |
repository_str |
R-134 |
collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
description |
It is shown that the conventional (or unweighed) least squares method must not be used to evaluate the B.E.T. constants, Xm and C, when using a rearranged linear B.E.T. plot recently suggested in the literature. This is illustrated using literature data on water sorption in several foods. In this case a semi‐weighted (or weighted) least squares analysis becomes necessary. It is also shown that the unweighted least squares analysis should not be applied even to the familiar linear B.E.T. plot. In this particular case, however, and because of a fortuitous coincidence, this procedure leads to not significant differences — at least in food research — in the numerical values. Copyright © 1977, Wiley Blackwell. All rights reserved |
author |
Iglesias, Héctor Arturo Boquet, Reinaldo |
spellingShingle |
Iglesias, Héctor Arturo Boquet, Reinaldo ON THE EVALUATION OF B.E.T. CONSTANTS FROM THE B.E.T. ISOTHERM EQUATION |
author_facet |
Iglesias, Héctor Arturo Boquet, Reinaldo |
author_sort |
Iglesias, Héctor Arturo |
title |
ON THE EVALUATION OF B.E.T. CONSTANTS FROM THE B.E.T. ISOTHERM EQUATION |
title_short |
ON THE EVALUATION OF B.E.T. CONSTANTS FROM THE B.E.T. ISOTHERM EQUATION |
title_full |
ON THE EVALUATION OF B.E.T. CONSTANTS FROM THE B.E.T. ISOTHERM EQUATION |
title_fullStr |
ON THE EVALUATION OF B.E.T. CONSTANTS FROM THE B.E.T. ISOTHERM EQUATION |
title_full_unstemmed |
ON THE EVALUATION OF B.E.T. CONSTANTS FROM THE B.E.T. ISOTHERM EQUATION |
title_sort |
on the evaluation of b.e.t. constants from the b.e.t. isotherm equation |
publishDate |
1977 |
url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00221147_v42_n5_p1387_IGLESIAS http://hdl.handle.net/20.500.12110/paper_00221147_v42_n5_p1387_IGLESIAS |
work_keys_str_mv |
AT iglesiashectorarturo ontheevaluationofbetconstantsfromthebetisothermequation AT boquetreinaldo ontheevaluationofbetconstantsfromthebetisothermequation |
_version_ |
1768542159716220928 |