本文对盐酸蔡乙二胺比色法测定杀虫脒,对氯邻甲苯胺的测试条件,样品采集,处理和保存进行了研究和验证。检测限杀虫脒为10.8ug/L(尿样),对氯邻甲苯胺为 7.6ug/L(尿样)。收集接触者次日晨尿,尿中添加盐酸,于塑料瓶或玻璃瓶中可保存15天。 In this paper, the method of colorimetric determination of chlordimeform by hydrochloric acid and ethylenediamine hydrochloride, the test conditions of chlorine o-toluidine, sample collection, processing and preservation were studied and verified. The detection limit of chlordimeform was 10.8ug / L (urine samples), para-toluidine was 7.6ug / L (urine samples). Morning contact urine collected the next day, urine hydrochloric acid, in plastic bottles or glass bottles can be stored for 15 days.