Plastics Determination of average molecular mass and mixture ratio of poly(ethylene glycol) and its derivatives by MALDI-TOF-MS

Available format(s)

Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

English

Published date

03-23-2017

Publisher

International Organization for Standardization

ISO 19929:2017 specifies a general method for determining the average molecular mass and mixture ratio of poly(ethylene glycol) (PEG) and its derivatives with different end groups by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS). It is applicable to PEG and its derivatives with molecular masses from 500 g mol¹ to 20 000 g mol¹. The composition is calculated by means of a calibration curve constructed using standard polymer mixtures, where the peak area ratio is plotted versus the mass ratio. This document can be applied to other polymers with monomeric unit similar to PEG.

DevelopmentNote	Supersedes ISO/DIS 19929. (03/2017)
DocumentType	Standard
Pages	13
PublisherName	International Organization for Standardization
Status	Current

Standards	Relationship
NEN ISO 19929 : 2017	Identical
BS ISO 19929:2017	Identical

ISO 472:2013	Plastics Vocabulary
ISO 10927:2011	Plastics Determination of the molecular mass and molecular mass distribution of polymer species by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS)