Complaint
Test Result | |||
Serial Number | Test Item | Standard | Result |
1 | Solubility in water | Freely soluble | Freely soluble |
2 | Solubility in ethanol | Slightly soluble | Slightly soluble |
3 | Ultraviolet absorption | 227+2nm | 227nm |
4 | Test for potassium | Positive | Positive |
5 | Precipitation test | Yellow precipitation | Yellow precipitation |
6 | Assay(Titration method) | 99.0-101.0% | 99.56 |
7 | PH | 6.5~7.5 | 6.8 |
8 | Loss on drying(105ºC,2h | ) ≤1%(105ºC,2h) | 0.24% |
9 | Organic impurities(HPLC) | ≤20mg/kg | <20mg/kg |
10 | Impurity A* | ≤0.125% | <0.125% |
11 | Impurity B* * | ≤20mg/kg | <20mg/kg |
12 | Fluoride | ≤3mg/kg | 1.3mg/kg |
13 | Heavy Metals | ≤5mg/kg | 3mg/kg |
14 | Lead | ≤1mg/kg | 0.2mg/kg |
15 | Arsenic | ≤3mg/kg | 1.4mg/kg |
16 | Selenium | ≤30mg/kg | 2mg/kg |
17 | Hg | ≤0.03mg/kg | 0.01mg/kg |
18 | Sulfate | ≤0.1% | 0.1% |
19 | NDCadmium | ND | |
20 | Chrome | ND | |
20 | Nickel | ND | |
Conclusion: The above product conforms to the standard. | |||
