连续流动分析仪法测定水中总氰化物  

DETERMINATION OF TOTAL CYANIDE IN WATER BY CONTINUOUS FLOW ANALYZER

作　　者：李晓燕 叶雪梅 邹小红 

机构地区：[1]深圳市宝安区环境监测站,深圳518101

出　　处：《环境工程》2004年第3期58-60,共3页Environmental Engineering

摘　　要：采用连续流动分析仪测定水中总氰化物。通过各类实际样品和标准样品的分析 ,该方法的检出限为0 0 0 2mg L ,相对标准偏差为 0 7%～ 3 0 % ,加标回收率为 96 0 %～ 10 6 0 %。实验表明 ,该方法具有灵敏度、准确度高 ,精密度和回收率好 ,节省试样、试剂等特点 ,并提高了操作的安全性、方便性及工作效率。适用于水质中总氰化物的测定。A continuous flow analyzer was used to determine total cyanide in the water.Through the test of the actual samples and reference samples,the method's detection limit was 0.002 mg/L,relative standard deviation was 0.7%～3.0%,the recovery rate of indexed standard was 96.0%～106.0%.The result indicated that the method featured high sensitivity,high accuracy,high precision and high recovery rate; moreover,it can save the sample and reagent, also improve safety, convenientce and working efficiency.It is suitable to detect total cyanide in water.

关 键 词：连续流动分析仪 水质监测 总氰化物 异烟酸-吡唑啉酮光度法 缓冲溶液 

分 类 号：X832[环境科学与工程—环境工程]