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应用高效液相色谱法，采用国产色谱柱ＹＷＧ－Ｃ１８，对中药豆科植物决明子中所含的主要有效成分大黄酚进行了含量测定．所测大黄酚的回收率是９８．９％，ＲＳＤ为１．３３％，线性范围是０．１－０５ｍｇ／ｍｌ，相关系数为０．９９９２．
The main active ingredient chrysophanol contained in cassia plants was determined by high performance liquid chromatography and domestically produced chromatographic column YWG-C18. The recovery of chrysophanol was 98.9%, the RSD was 1.33%, the linear range was 0.1-05 mg/ml, and the correlation coefficient was 0.9992.