DING Hong-mei, SHENG Zhen-hua, GE Er-ning. Determination of Quercitrin from Platycladus orientalis Leaves by Capillary-zone Electrophoresis[J]. Chinese journal of experimental traditional medical formulae, 2010, 16(11): 73-75.
DING Hong-mei, SHENG Zhen-hua, GE Er-ning. Determination of Quercitrin from Platycladus orientalis Leaves by Capillary-zone Electrophoresis[J]. Chinese journal of experimental traditional medical formulae, 2010, 16(11): 73-75. DOI: 10.13422/j.cnki.syfjx.2010.11.030.
Objective:To establish a new determination method for quercitrin from Platycladus orientalis leaves by capillary-zone electrophoresis(CZE).Method:Under the optimized CZE conditions:a running buffer composed of 30 mmol.L-1 borax-boric acid(volume 1∶ 3)
separation voltage at 25 kV
temperature at 25 centigrade
injection time for 8 sec with 0.5 psi pressure
quercitrin from P.orientalis leaves was detected at 254 nm wavelength.Result:Quercitrin was linear in the range of 1-200 mg.L-1(r = 0.999 3).The RSD of exactitude
stability
and recovery of the method was 1.1346%
2.6046 % and 2.3315%
respectively.The contents of quercitrin in three batches of P.orientalis leaves were 2.551 3
2.546 7
2.478 0 mg.g-1.Conclusion:The method was simple
fast and accurate for determination of the drugs containing quercitrin.