Isolation and Purification Business (multi-milligram level, multi-gram level to multi-kilogram level)
Synthesis, preparation and structural analysis of unknown low content (0.01%) impurities in raw materials, pesticides, veterinary drugs and preparations.
Isolation, purification and structure identification of active ingredients in plants, animals, microorganisms and Chinese medicinal materials.
Isolation, purification and structure confirmation of chemical components in fermentation products.
Synthesis, preparation and structure analysis of isotopic impurities in drugs.
Isolation, purification and structural identification of sugar compounds.
Synthesis and resolution of chiral compounds.
Analyzing business
Compound purity detection and stability analysis (HPLC).
Compound molecular weight detection (LC-MS).
Structural analysis of unknown compounds (LC-MS, 1H-NMR, 13C-NMR).
Solve the Problem of Insufficient Research on Related Substances in the Declaration
The basis for selecting the wavelength of the relevant substances is insufficient, and sufficient research has not been carried out.
Combined with the process, please add isomer control means.
The detection methods of related substances are unreliable, and the research on related impurities at home and abroad is not sufficient.
Clarify process impurities and degradation impurities.
Copy the pharmacopoeia, and use low-sensitivity methods such as TLC to control impurities.
