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Items | Standards |
Assay Content | 99.0~101.0% |
Solubility in Water | Freely Soluble |
Solubility in Ethanol | Slightly Soluble |
Ultraviolet Absorption | 227±2nm |
Test for Potassium | Positive |
Precipitation test | Yellow Precipitate |
Loss on Drying(105℃,2h) | ≤1% |
Organic Impurities | ≤20PPM |
Fluoride | ≤3 |
Potassium | 17.0-21 |
Heavy Metals | ≤5PPM |
Arsenic | ≤3PPM |
Lead? | ≤1PPM |
Selenium | ≤10PPM |
Sulfate | ≤0.1% |
PH (1 in 100 solution) | 5.5-7.5 |
Total Plate Count (cfu/g) | ≤200 cfu/g |
Coliforms-MPN | ≤10 MPN/g |
E.Coli | Negative |
Salmonella | Negative |



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