本文提出了应用试制的塑料膜电极测定中麻制剂含量的电极测定法。氢溴酸东莨菪碱以校正曲线法测定,回收率为99.9～101.4％,以pX值测定法直接测定其浓度,结果与中国药典1977年版方法测得结果一致。汉肌松注射液经8次测定,平均含量为5.02mg/ml,标准偏差为0.167,制剂中助溶剂葡萄糖对测定并不干扰。 This paper proposes an electrode assay for the determination of the content of hemp preparations using a prototype plastic film electrode. The scopolamine hydrobromide was measured by the calibration curve method, and the recovery rate was 99.9 to 101.4%. The concentration was measured directly by the pX value determination method. The results were consistent with the results measured by the 1977 edition of the Chinese Pharmacopoeia. Hanmusong injection was determined 8 times, and the average content was 5.02 mg/ml with a standard deviation of 0.167. The cosolvent glucose in the preparation did not interfere with the determination.