ISO 10927:2018 塑料 基质辅助激光解吸附/电离飞行时间质谱法（MALDI-TOF-MS）测定聚合物种类的分子质量及分子质量分布

标准编号：ISO 10927:2018

中文名称：塑料 基质辅助激光解吸附/电离飞行时间质谱法（MALDI-TOF-MS）测定聚合物种类的分子质量及分子质量分布

英文名称：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)

发布日期：2018-06

标准范围

This document specifies a general method for determining the average molecular mass and molecular −1 −1 mass distribution of polymers (see Reference [1]) from 2 000 g ⋅ mol to 20 000 g ⋅ mol 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.

标准预览图