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本文采用反相ＨＰＬＣ法测定乌洛托品合剂的含量。通过选择合适的色谱条件及内标物，乌洛托品的平均回收率为９９．８７％（ＲＳＤ＝０．３５％，ｎ＝５）。
In this paper, reversed-phase HPLC method for the determination of urotropine mixture. The average recovery of urotropin was 99.87% (RSD = 0.35%, n = 5) by selecting the appropriate chromatographic conditions and internal standard.