CHANG Lin, ZHU Chuan-jing, KANG Chen, et al. Determination Method of CaCO in Ophicalcitum[J]. Chinese journal of experimental traditional medical formulae, 2011, 17(4): 60-61.
CHANG Lin, ZHU Chuan-jing, KANG Chen, et al. Determination Method of CaCO in Ophicalcitum[J]. Chinese journal of experimental traditional medical formulae, 2011, 17(4): 60-61.DOI:
Objective: To develop a method for the content determination of CaCO3 in Ophicalcitum. Method: The content of CaCO3 in Ophicalcitum was determined by the method of the EDTA-capacity. Result: The content of CaCO3 in Ophicalcitum from the different sources varied from 36.65% to 98.88%
and the average recovery was 98.85% (RSD 1.03%
n=5). Conclusion: This method was simple and feasible for the quality control of Ophicalcitum.