HPLC指纹图谱鉴别滇黄芩与黄芩

目的:建立高效液相色谱指纹图谱,鉴别不同产地的滇黄芩与《中国药典》收录的黄芩。方法:采用反相高效液相色谱(RP-HPLC)法,色谱柱为Zorbax SB-C18(250mm×4.6mm,5μm),流动相为乙腈(含1.0%甲酸)-水(含1.0%甲酸),梯度洗脱,流速为1.0mL.min-1,检测波长为274nm,柱温为30℃。结果:不同产地的滇黄芩指纹图谱相似度较好,不同产地的黄芩之间指纹图谱相似度也较好;但滇黄芩与黄芩的相似度仅为0.859,存在较大差异。结论:本方法为深入研究滇黄芩与黄芩的质量标准打下了基础。

Identification of Scutellaria amoena CH Wright and Scutellaria baicalensis Georgi with HPLC Fingerprints

OBJECTIVE:To identify different origin of Scutellaria amoena CH Wright and Scutellaria baicalensis Georgi indexed in China Pharmacopeia by HPLC fingerprints.METHODS:RP-HPLC method was adopted in which the samples were separated on Zorbax SB-C18(250mm×4.6mm,5μm)column at a column temperature of 30℃.The gradient elution was performed on the mobile phase which consisted of acetonitrile(contairing 1.0% methanoic acid)-water(containing 1.0% methanoic acid)at a flow rate of 1.0mL·min-1.The detection wavelength was set at 274nm.RESULTS:The fingerprints of Scutellaria amoena CH Wright that from different places were of great resemblance,so were the fingerprints between Scutellaria baicalensis Georgi that from different places,but the fingerprints between Scutellaria amoena CH Wright and Scutellaria baicalensis Georgi were of significant difference,with resemblance of only 0.859.CONCLUSION:The RP-HPLC fingerprint serves as basis for the further study of the quality criteria of Scutellaria amoena CH Wright and Scutellaria baicalensis Georgi.