ISO 19929:2017
Current
The latest, up-to-date edition.
Plastics Determination of average molecular mass and mixture ratio of poly(ethylene glycol) and its derivatives by MALDI-TOF-MS
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English
23-03-2017
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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) |
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