Q W Zhang1, Y Zhang, J P Li, H Ma. 1. Institute of Chinese Materia Medica, China Academy of TCM, Beijing 100700, China.
Abstract
OBJECTIVE: To develop an HPLC method for determining salvianolic acid B in radix of Salvia miltiorrhiza. METHOD: The sample was extracted with 75% methanol. ODS column was used with methanol-5% acetic acid solution (35:65) as mobile phase. Detection wavelength was 281 nm. RESULT: Salvianolic acid B was separated well. Good linearity of salvianolic acid B was obtained (r = 0.9997) within the range of 0.17-1.7 micrograms. The average recovery was 98.9%. Repeatability was good, and RSD was 1.82%. CONCLUSION: This method can be used for quality control of radix of Salvia miltiorrhiza.
OBJECTIVE: To develop an HPLC method for determining salvianolic acid B in radix of Salvia miltiorrhiza. METHOD: The sample was extracted with 75% methanol. ODS column was used with methanol-5% acetic acid solution (35:65) as mobile phase. Detection wavelength was 281 nm. RESULT: Salvianolic acid B was separated well. Good linearity of salvianolic acid B was obtained (r = 0.9997) within the range of 0.17-1.7 micrograms. The average recovery was 98.9%. Repeatability was good, and RSD was 1.82%. CONCLUSION: This method can be used for quality control of radix of Salvia miltiorrhiza.