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非成瘾性高效镇痛新药痛力克在硫酸底液中产生一灵敏的微分吸附计时电位溶出峰，峰电位在－１．０ Ｖ（ｖｓ．ＳＣＥ，以下同）。利用该峰测定痛力克的线性范围为 ０．０２－ ２．０ ｍｇ／Ｌ；检测限为 ０．００４ ｍｇ／Ｌ。用线性扫描、循环伏安等方法研究了该体系的电化学行为和电极反应机理，认为所研究体系属于有吸附性的不可逆还原过程，电极反应的电子转移数为２，参与电极反应的质子数为２。用该方法测定了片剂中痛力克的含量，结果满意。
The new non-addictive and highly effective analgesic painkilk produces a sensitive differential adsorption chronopotentiometric peak at a sulfate base with a peak potential of -1.0 V (vs.SCE, the same applies below). Using this peak, the linear range of norepinephrine was 0.02-2.0 mg / L and the limit of detection was 0.004 mg / L. The electrochemical behavior and electrode reaction mechanism of the system were studied by linear sweep and cyclic voltammetry. It is concluded that the system under study belongs to an irreversible reduction process with adsorption. The number of electron transfer in electrode reaction is 2, and the number of protons involved in electrode reaction Is 2 The method was used to determine the content of painkillers in the tablets and the results were satisfactory.