Molecular weight testing

Molecular weight measurement is a method that uses the molecular mass of a substance to measure. It can determine the molecular weight and relative molecular weight of a substance. There are different methods of measuring molecular weight, but they are all based on Maxwell's expression: the molecular mass of a substance is equal to its number of atoms multiplied by its atomic weight. Zhongke Testing provides molecular weight testing services and has CMA and CNAS qualification certification.

Determination of number average molecular weight, determination of weight average relative molecular weight by light scattering method, determination of polymer relative molecular weight by viscometry, gel permeation chromatography (GPC), etc.

End-group titration method, freezing point depression method, vapor pressure drop method (VPO), membrane osmotic pressure method, etc.

Nuclear Magnetic Resonance Flow Analyzer/Flow Injection Analyzer (FIASFACFA)
Capacitance Moisture Analyzer Resistance Moisture Analyzer
Infrared Moisture Analyzer UV-visible Spectrophotometer
Infrared Spectroscopy (IR, Fourier) Gas Phase Molecular Absorption Spectrometer (GMA)