【摘要】 重新考察了影响比色法测定氰化物结果的各种因素，发现滴加酸中和碱这一操作步骤和水浴温度及时间对测定结果影响最大，略去滴加酸操作并严格控制水浴温度和时间可使测定结果的相对标准差从１０％～２２．８％降至＜５％。更多还原

【Abstract】 The factors influencing the colorimetric determination of cyanide were reexamined. It was found that the neutralization of the sample solution and the temperature and time for color development in the water bath were critical. But by omitting the process of neutralization and controlling the temperature and time,the relative standard deviation of the method could be improved from more than 22% to less than 5%.更多还原