SNV - SN EN ISO 10927
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)
| Organization: | SNV |
| Publication Date: | 1 November 2011 |
| Status: | active |
| Page Count: | 24 |
| ICS Code (Plastics in general): | 83.080.01 |
scope:
This International Standard specifies a general method for
determining the average molecular mass and molecular mass
distribution of polymers from 2 000 g⋅mol−1 to 20 000
g⋅mol−1 by matrix-assisted laser desorption/ionizatio
The average molecular masses and molecular mass distributions are calculated from a calibration curve constructed using synthetic-polymer and/or biopolymer standards. This method is therefore classified as a relative method.
The method is not applicable to polyolefins or to polymers with a polydispersity greater-than 1,2.
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