BS EN ISO 10927-2011 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
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)
This International Standard specifies a general method for determining the average molecular mass and
molecular mass distribution of polymers (see Reference) from 2 000 g⋅mol to 20 000 g⋅mol by matrixassisted
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.