COA for Chondroitin Sulphate sodium Bovine 90%
1. Origin: Bovine cartilage
2. Characteristics: Fine powder
3. Colour: White to white-ivory
4. Odour: Slightly characteristic
odour
5. Identification :
Carbazole: Positive
Sulphate: Positive
Sodium: Positive
Acrinol: Positive
IR spectrum: Positive
6. Clarity and colour of solution: Colourless and tran***rent
7. pH(1% solution): 5.5~7.5
8. Chloride: ¡Ü0.142%
9. Sulphate: ¡Ü0.240%
10. Heavy metals: ¡Ü20 ppm
11. Loss on drying: ¡Ü10.0%
12. Residue on ignition: 23.0%~30.0%
13. Specific optical rotation: -28¡ã~-32¡ã
14. Assay:
Nitrogen: 2.5%~3.8%
Sodium chondroitin sulphate: ¡Ý90.0%(HPLC,on dried basis)
15. Microbial limit tests:
Total viable acrobic count: ¡Ü100CFU/g
E.Coli: Free
Pathogenic germs: Free
Salmonella: Free
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