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用微分脉冲阴极吸附溶出伏安法测定了利多卡因针剂的含量。浓度与波高的线性范围为1×10~(-7)～3×10~(-4)mol/dm~3。最低检测限l×10~(-8)mol/dm~3。回收率98.07±0.05%。
The contents of lidocaine injection were determined by differential pulse cathodic adsorption stripping voltammetry. The linear range of concentration and wave height is 1 × 10 ~ (-7) ~ 3 × 10 ~ (-4) mol / dm ~ 3. The minimum detection limit of l × 10 ~ (-8) mol / dm ~ 3. The recovery rate was 98.07 ± 0.05%.