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: | ISO |
| Publication Date: | 1 June 2018 |
| Status: | active |
| Page Count: | 20 |
| ICS Code (Plastics in general): | 83.080.01 |
scope:
This document specifies a general method for determining the average molecular mass and molecular mass distribution of polymers (see Reference [1]) from 2 000 g ⋅ mol−1 to 20 000 g ⋅ mol−1 by matrixassisted 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 >1,2.
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