CHANG Lin, ZHU Chuan-jing, KANG Chen, et al. Determination Method of CaCO3 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 CaCO3 in Ophicalcitum[J]. Chinese journal of experimental traditional medical formulae, 2011, 17(4): 60-61. DOI: 10.13422/j.cnki.syfjx.2011.04.024.
Objective:To develop a method for the content determination of CaCO3 in Ophicalcitum.Meth-od: The content of CaCO3in 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 Ophical-citum.