Determination of Matrine and Oxymatrine in <em>Radix Sophorae Flavescentis</em> by Resonance Rayleigh Scattering, Second-order Scattering and Frequency Doubling Scattering Technique

Determination of Matrine and Oxymatrine in Radix Sophorae Flavescentis by Resonance Rayleigh Scattering, Second-order Scattering and Frequency Doubling Scattering Technique

SONG Yan-qi, LIU Shao-pu, LIU Zhong-fang and HU Xiao-li*

Chemical Research in Chinese Universities . 2011, (5): 746 -749 .