Measurement of the relative molecular weight and molecular weight distribution of polymers and oligomers.
This method utilizes the pores of a filler used as a stationary phase to separate sample molecules in order of increasing molecular size, and is also known as size exclusion chromatography (SEC). Larger molecules penetrate the pores of the gel less and move through the column and elute faster than smaller molecules. In this way, by separating and eluting based on molecular size, and using the differences in refractive index (RI) between the solvent and the sample solution or the absorption of functional groups (UV) to detect concentration, a distribution of molecules can be obtained.
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【Features】 ○ Appropriately select conditions such as elution solution, type of column, temperature, and standard substances for analysis. ○ GPC measurement results of SEC chromatograms and differential molecular weight distribution curves. ○ Obtain the average molecular weight from the molecular weight distribution and calculate the average molecular weight value. ● For other functions and details, please contact us.
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At DJK, we respond to all customer needs swiftly and accurately under confidentiality. DJK engages in the following activities related to polymer materials and composite materials: 1. Synthesis, polymerization, and modification reactions 2. Compounding, molding, and sample processing 3. Material testing, physical property measurement, and analysis services 4. Technical consulting 5. Defective product failure analysis testing 6. Application and testing outsourcing for overseas standards (FDA/EPA, DMF, biodegradability certification, and others)