Yan-hua Guo

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OBJECTIVE To study the processing material foundation of Psoralea corylfolia L. and compare the content of psoralen, isopsoralen and microelement between raw Psoralea corylifolia L. and processed one. METHODS The content of psoralen, isopsoralen and microelement were obtained by HPLC-gradient elution and ICP-AES. RESULTS The content of psoralen,(More)
OBJECTIVE To establish the fingerprint spectrum of Lophatherum gracile by HPLC. METHODS The samples were separated on Agilent Eclipse XDB- C18 column (150 mm x 4.6 mm, 5 microm) with methanol (A) -3% acetic acid (B) as the mobile phase at a flow rate of 1.0 mL/min at 30 centigrades, adopting the gradient elution process with switching the Wavelength. (More)
OBJECTIVE To optimize the herb processing process for the total contains of psoralen and isopsoralen and the rate of extract in Psoralea corylifolia by micro-wave herb processing. METHOD The contains of psoralen and isopsoralen was obtained by HPLC. The micro-wave herb processing process was optimized by the way of uniform design and contour map. RESULT(More)
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