流动注射仪测定水中氰化物两种方法的对比  

Comparison of Two Determination Methods of Cyanide in Water by Flow Injection Analysis

作　　者：邱佳鸿 QIU Jia-hong(Guangdong Hanzheng Testing Technology Co.,Ltd.,Guangdong Foshan 528200,China)

机构地区：[1]广东瀚正检测科技有限公司,广东佛山528200

出　　处：《广州化工》2020年第18期72-73,共2页GuangZhou Chemical Industry

摘　　要：流动注射分析仪测定氰化物的两种方法——异烟酸-巴比妥酸法和吡啶-巴比妥酸法均具有灵敏度高、准确度高、稳定性好、分析速度快等优点。吡啶-巴比妥酸法每小时能处理18个样品,效率更高。异烟酸-巴比妥酸法不需要使用吡啶和浓盐酸,能减少对实验人员的伤害。两种方法的管路设置基本相同,在试剂和滤光片都配备好的情况下,实验人员可根据实际需要选择使用的方法。Two determination methods of cyanide by flow injection analysis(FIA)—isonicotinic acid-barbituric acid method and pyridine-barbituric acid method,both have the advantages of high sensitivity,high accuracy,good stability and fast analysis speed.The pyridine-barbituric acid method can process 18 samples per hour with higher efficiency.The isonicotinic acid-barbituric acid method does not need to use pyridine and concentrated hydrochloric acid,which can reduce the harm to the experimental personnel.The FIA pipeline settings of the two methods are basically the same,if the reagents and filters are well equipped,the experimental personnel can choose the method according to the actual needs.

关 键 词：流动注射分光光度法 氰化物 

分 类 号：X832[环境科学与工程—环境工程]