液相臭氧氧化法测定海水化学耗氧量  

Determination of Chemical Oxygen Demand in Seawater Based on the Technique of Aqueous-Phase Ozone Oxidation

作　　者：靳保辉[1] 庄峙厦[2] 王小如[2] Frank S.C.Lee 

机构地区：[1]深圳出入境检验检疫局,广东深圳518067 [2]厦门大学化学系现代分析科学教育部重点实验室,福建厦门361005 [3]国家海洋局第一海洋研究所,山东青岛266061

出　　处：《分析测试学报》2005年第3期67-70,共4页Journal of Instrumental Analysis

基　　金：国家863计划海洋领域资助项目(2001AA635120)

摘　　要：基于溶解臭氧在水体中能够氧化鲁米诺产生发光现象,建立了一种利用流动注射液相化学发光技术(FI-CL)测定化学耗氧量(COD)的新方法。COD测定范围在0.6～24mg/L之间,适合海水监测。对实际海水水样的测定结果与碱性高锰酸钾法具有一致趋势,测定的相对标准偏差小于10%。Based on the chemiluminscence(CL)phenomena of ozonation luminol,a new method utilizing flowinjection chemiluminescence(FI-CL)was developed.The concentration range for chemical oxygen deˉmand(COD)determination ranged from0.6to24mg/L,which is suitable for COD determination in seawaˉter.Real marine samples were analyzed and the results showed that the results measured by the FI-CL method were consistent with those by the Mn method.The relative standard deviation for three repeated meaˉsurements of COD was less than10%by FI-CL.

关 键 词：臭氧 COD 流动注射化学发光 

分 类 号：O657.39[理学—分析化学]