Reference number
ISO 19929:2017
© ISO 2024
International Standard
ISO 19929:2017
Plastics — Determination of average molecular mass and mixture ratio of poly(ethylene glycol) and its derivatives by MALDI-TOF-MS
Edition 1
2017-03
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Published (Edition 1, 2017)
This publication was last reviewed and confirmed in 2022. Therefore this version remains current.

ISO 19929:2017

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CHF 96
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Abstract

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 mol−1 to 20 000 g mol−1. 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.

General information

  • Status
     : Published
    Publication date
     : 2017-03
    Stage
    : International Standard confirmed [90.93]
  • Edition
     : 1
    Number of pages
     : 13
  • Technical Committee :
    ISO/TC 61/SC 5
    ICS :
    83.080.01 
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