E尊国际首页 weight and molecular weight distribution are the fundamental parameters of high molecular weight polymers. Many mechanical and physical properties of polymer materials, including tensile strength, flexibility, impact resistance, thermal and oxidative aging resistance, and corrosion resistance, are directly related to their molecular weight. Therefore, investigating the molecular weight and molecular weight distribution of polymer materials is one of the important tasks in evaluating material performance. E尊国际首页 weight determination has wide applications in material research and development, quality control, and failure analysis.
Gel Permeation Chromatography (E尊国际首页), abbreviated as E尊国际首页, utilizes the differential elution time of molecules of various sizes through a gel column to separate molecules of different molecular weights in high polymers. The intensity and elution time of each eluted component are measured using a refractive index detector. By comparing the elution time of unknown samples with the standard curve of known standard materials in terms of elution time and molecular weight, the molecular weight and molecular weight distribution of each eluted component of the unknown sample can be determined.
Detection range
Polymer molecular weight, fiber molecular weight, resin molecular weight, nylon molecular weight, powder coating brightener molecular weight, high-density polyethylene molecular weight, polyethylene glycol molecular weight, polystyrene molecular weight, starch molecular weight, etc.
E尊国际首页 items
E尊国际首页 molecular weight distribution, relative molecular weight, weight-average molecular weight, molecular weight distribution curve testing, peak molecular weight testing, etc.
Polymer stability research services (thermal stability, photo stability, oxidation stability, hydrolysis stability, solvent stability).
E尊国际首页 molecular weight testing standards
| E尊国际首页 Items | Standard Name | Standard No. |
| Average E尊国际首页 E尊国际首页 and E尊国际首页 E尊国际首页 Distribution | Standard methods for E尊国际首页 molecular weight testing of polystyrene: High-performance size exclusion chromatography (SEC) | E尊国际首页/T 21864-2008 |
| Gel permeation chromatography (E尊国际首页) using tetrahydrofuran (THF) as the eluent | E尊国际首页/T 21863-2008 | |
| Gel permeation chromatography (E尊国际首页) using tetrahydrofuran (THF) as the eluent for paint and varnish base | E尊国际首页/T 27810-2011 | |
| E尊国际首页 Part 1: Tetrahydrofuran (THF) as the eluent | E尊国际首页 13885-1:2020 | |
| Content of Low E尊国际首页 E尊国际首页 Components in Polymers | (E尊国际首页) Determination of low molecular weight components in polymers using gel permeation chromatography (E尊国际首页) for chemical substances | E尊国际首页/T 27843-2011 |
Sample requirements
Sample state: It can be in the form of liquid, powder, or solid.
The sample should have good solubility in the specified mobile phase. For powder samples, a minimum of 50g is required, while for liquid samples, it should be between 50-100ml.
Scientific Detection (Hike Detection) possesses the CMA (China Metrology Accreditation) qualification that meets the above testing standards and criteria. We provide material molecular weight testing services to various enterprises and institutions for sales, research and development, legal purposes, scientific research papers, bidding processes, and industrial issue diagnosis.
If you need any assistance or have any questions, please get in touch with us via [email protected].
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