基于扑热息痛还原铬(Ⅵ)和铬(Ⅲ)催化鲁米诺-过氧化氢的化学发光,建立了氧化还原偶合反应流动注射化学发光法测定扑热息痛的新方法。方法线性范围为4.0×10-9～4.0×10-5mol/L,检出限为1.0×10-9mol/L。对4.0×10-7mol/L扑热息痛平行测定8次,其标准偏差为2.7%。已将该方法用于片剂中扑热息痛含量测定。 Based on the chemiluminescence of luminol-hydrogen peroxide catalyzed by chromium (Ⅵ) and chromium (Ⅲ) catalyzed by acetaminophen, a new method of flow injection chemiluminescence for the determination of paracetamol was established. The linear range of the method was 4.0 × 10-9 ~ 4.0 × 10-5mol / L with the detection limit of 1.0 × 10-9mol / L. Paracetamol 4.0 × 10-7mol / L parallel determination of 8 times, the standard deviation of 2.7%. This method has been used for the determination of paracetamol in tablets.