Method: Fructus crataegi and tea were identified by TLC. flavonoids was determined by colorimetry at 500 nm of wavelength, rutin was used as control substance, Chrysophanol was determined by RP-HPLC.

 
  • 方法:對茶葉、決明子進(jìn)行了薄層色譜鑒別,用比色法測定總黃酮的含量,用反相HPLC法測定決明降脂茶中大黃酚的含量。
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