Introduction
A scanning electron microscope (SEM) is a large-scale precision instrument for high-resolution microtopography analysis. It has the characteristics of large background, high resolution, intuitive imaging, strong three-dimensional sense, wide magnification range, and the sample to be measured can be rotated and tilted in three-dimensional space. In addition, it has the advantages of a wide variety of measurable samples, almost no damage and contamination of the original sample, and the morphology, structure, composition and crystallography information can be obtained at the same time.
Scanning electron microscope (SEM) uses a narrow, focused high-energy electron beam to scan a sample, and excites various physical information through the interaction between the beam and the substance, and collects, magnifies, and re-images this information to achieve the purpose of microscopic morphology characterization of the substance. SEM is an observation method between transmission electron microscopy and optical microscopy, which is widely used to observe the morphology and composition of surface ultrastructures of various solid substances (such as polysaccharides, nanomaterials, metals, etc.). The microscopic imaging of polysaccharide samples was carried out by scanning electron microscopy to obtain the morphological structure of granular or aggregated by single particles, indicating that scanning electron microscopy is a simple and effective method for the microscopic morphology of polysaccharides after enzymatic hydrolysis.
Electron microscopy analysis of polysaccharides
Fields of application
1. Development of functional foods and raw materials.
2. Research on the pharmacological activity and toxicology of traditional Chinese medicine.
3 Protein glycosylation modification studies.
4 Food safety research.
servicesAdvantages:
l The sample demand is small, the compatibility is good, and the sample types that can be measured are abundant;
l Structure, composition and crystallography information can be obtained at the same time;
l Adopt mature analysis technology, advanced equipment, intuitive imaging, wide magnification range, high resolution.
Service process
After the two parties communicate with each other, determine the experimental plan, determine the service requirements, sign the contract, make an advance payment, start the experiment, and deliver the results.