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BS ISO 13885-3:2020

Withdrawn
Withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

Gel permeation chromatography (GPC) Water as eluent
Amended by

BS EN ISO 13885-3:2021

Available format(s)

Hardcopy , PDF

Withdrawn date

04-10-2021

Language(s)

English

Published date

13-07-2020

Publisher

British Standards Institution

This document specifies the determination of the molar-mass distribution and the average molar mass values Mn (number average) and Mw (weight average) of polymers that are soluble in water by gel permeation chromatography (GPC).

This document specifies the determination of the molar-mass distribution and the average molar mass values Mn (number average) and Mw (weight average) of polymers that are soluble in water by gel permeation chromatography (GPC). NOTE Also known as size exclusion chromatography (SEC).This method is applicable to neutral polymers and polyanions (e.g. polycarboxylates, polysaccharides, fully hydrolyzed polyvinyl alcohols and high-molecular polyethylene oxides). It is not applicable to polycations [e.g. polyvinylpyrrolidone, polyvinylpyridine, salts of poly(diallyl?N,N?dimethyl?a zacyclopentane), chitosan].Despite good solubility in the mobile phase and even though the chromatograms obtained show good repeatability, it is possible that this method cannot be used with certain polymer types because of specific interactions (e.g. adsorption) within the sample/eluent/column system (see also Clause12).The conditions specified in this document are not applicable to the GPC analysis of polymer samples withMw values greater than 106g/mol and/or polymers with elution limits outside the calibration range (see7.6 and AnnexC).This document includes no correction methods (e.g. for the elimination of peak broadening). If absolute molar mass values are required, an absolute method (e.g. membrane osmometry for Mn or light scattering forMw) can be used.

Committee
STI/10
DocumentType
Standard
ISBN
9780539053128
Pages
32
PublisherName
British Standards Institution
Status
Withdrawn

Standards Relationship
ISO 13885-3:2020 Identical

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Hardcopy - English
PDF - English
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