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本文于Ｂｒｉｔｔｏｎ－Ｒｏｂｉｎｓｏｎ介质（ｐＨ２．５）中研究了头孢唑啉的半微分吸附伏安法行为，并讨论了电极过程。在选定条件下，于－０．６７Ｖ（ｖｓ．Ａｇ／ＡｇＣｌ）处得一灵敏的还原峰。富集５０ｓ，其浓度在４．４×１０￣－９～１．１×１０￣－７ｍｏ１／Ｌ范围内与峰电流值呈良好线性关系，检测下限为２．２×１０￣－９ｍｏ１／Ｌ方法无需前处理即可用于尿液及血清样品中痕量头孢唑啉的测定，回收率在９２．５％～１０８．３％，相对标准偏差为２．８％。
In this paper, the semi-differential adsorption voltammetry of cefazolin was studied in Britton-Robinson medium (pH2.5) and the electrode process was discussed. Under the chosen conditions, a sensitive reduction peak at -0.67 V (vs. Ag / AgCl) was obtained. Enrichment 50s, its concentration in the range of 4.4 × 10 ~ 9 ~ 1.1 × 10 ~ -7mo1 / L and the peak current value showed a good linear relationship between the detection limit of 2.2 × 10 ~ -mou1 / L The method was applied to the determination of trace cefazolin in urine and serum samples without pretreatment. The recoveries ranged from 92.5% to 108.3% with a relative standard deviation of 2.8%.