qi xiang se pu fa ce ding zhi tong zuo zhong ding xiang fen de han liang
Ma Xinrong Jiangsu Provincial Institute for Drug Control The eugenol in Compound Zhitong Ding was determined by GC. The results showed that at the eugenol concentration range from 0. 96 to 6. 7 μg/ml;the linear relative coefficient was r = 0. 9999. The average rate of recovery was 99. 80;;and the coefficient of Variation was 0. 55;. This method was simple;rapid and accurate;and thus very reliable for the quality control of Zhitong Ding
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