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Hlavní stránka>BS EN ISO 10927:2018 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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sklademVydáno: 2018-07-20
BS EN ISO 10927:2018 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)

BS EN ISO 10927:2018

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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Označení normy:BS EN ISO 10927:2018
Počet stran:22
Vydáno:2018-07-20
ISBN:978 0 580 96208 0
Status:Standard
Popis

BS EN ISO 10927:2018


This standard BS EN ISO 10927:2018 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) is classified in these ICS categories:
  • 83.080.01 Plastics in general

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 matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS).

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.