ČSN EN ISO 10927

Plastics - Determination of the molecular mass and molecular mass distribution of polymer species by matrixassisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS)

Dostupné jazyky: Anglicky

Dostupné prevedenie: Tlačené

od 13.90 EUR zobraziť na eshopu

Podrobné informácie

Označenie: ČSN EN ISO 10927

Dátum vydania: 01.01.2019

Stránok: 28

Krajina: Česká technická norma

Kde kúpiť?

Môžete zakúpiť na eshop.normservis.sk

Anotácia

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

Populárna vydavatelia

celý katalóg