喹噁啉类化合物具有极谱活性。经典极谱灵敏度低、分辨率差,使用受到限制。脉冲极谱是目前所有极谱技术中最灵敏的方法,它具有很高的分析灵敏度和分辨率,检测下限为ppb级,两峰相距25毫伏便可分辨。我们应用国产F-78型脉冲极谱仪,研究工业品2-羟基喹噁啉的测定方法。本法所用的仪器结构简单,操作方便,有效地排除共存化合物的干扰,误差在±O.5％ Quinoxaline compounds have polarographic activity. Low polarographic sensitivity, poor resolution, limited use. Polarographic polarography is the most sensitive method in all polarographic techniques. It has high analytical sensitivity and resolution, with a lower detection limit of ppb and a resolution of 25 mV between two peaks. We use the domestic F-78 pulse oximeter, industrial 2-hydroxyquinoline method of determination. The instrument used in this method is simple in structure, easy to operate and effectively eliminates the interference of coexisting compounds with an error of ± 0.5%