摘要
[目的]近岸海域海水中氰化物的含量与近岸海域海水质量息息相关,高效准确的测定方法可以对氰化物进行有效的监测,及时做出应对。[方法]目前用于海水监测氰化物的方法有异烟酸-吡唑啉酮分光光度法和吡啶-巴比妥酸分光光度法,存在一定的缺点,本文采用异烟酸-巴比妥酸连续流动水质分析仪(AA3)测定海水氰化物的测定方法。[结果]确定蒸馏温度为135℃,该方法的检出限为0.0133μg.L^(-1),加标回收率在99.3%~100.6%之间,精密度在1.4%~2.4%之间。[结论]采用此方法测定氰化物检出限低,加标回收率和精密度符合要求。
The content of cyanide in coastal seawater is closely related to the quality of coastal sea water. Efficient and accurate methods can ef- fectively monitor cyanide and make timely response. The current monitoring method of cyanide in sea- water were isonicotinic acid pyrazolone and pyridine barbituric acid spectrophotometric method, While they all have some disadvantages. This pa- per adopts isonicotinie acid barbituric acid continuous flow water quality analyzer （AA3） method for the determination of cyanide, and determine the distillation temperature is 135℃.The method has low detection limit ,and the recovery rate and precision meet the requirements.
出处
《资源节约与环保》
2017年第9期50-51,53,共3页
Resources Economization & Environmental Protection
基金
广州海域趋势性监测项目(0000029417015)
