桶装水中碘含量的催化动力学光度检测法  

Determination of Iodine in Barrel Water with Catalytic Colorimety

作　　者：仲岳桐[1] 柳其芳[1] 陈春晓[1] 

机构地区：[1]广东省深圳市疾病预防控制中心,518020

出　　处：《职业与健康》2008年第7期638-639,共2页Occupation and Health

摘　　要：目的建立适合于南方地区高温季节检测桶装水中的碘含量的方法。方法根据碘离子能对硫氰酸铁褪色反应产生催化作用这一反应机制，建立了检测水中碘的催化动力学光度法。结果该方法相对标准偏差在2．19％～4．65％之间，回收率在95．5％～101．1％之间，线性相关系数r=0．9994。结论该方法准确可靠，操作简单方便，高温环境亦可控制实验条件，可广泛应用于桶装水中碘的测定。[ Objective ] To establish a method for the determination of iodine in barrel water in hot seasons in south of China. [ Methods] According to the catalysis reaction of ferric sulfocyanate discolouration, catalytic colorimety method was established for the determination of iodine in barrel water. [ Results] The relative standard deviation {RSD} was 2.19% -4.65% ; the recovery rate was 95.5% - 101.1% ; the correlation coefficient for the linear equation was r =0. 9994. [ Conclusion] This method is accurate, simple and reliable; the experimental condition can be kept under control even in high temperature; it is applicable for the determination of iodine in barrel water.

关 键 词：催化动力学光度法 桶装水 碘 

分 类 号：R115[医药卫生—公共卫生与预防医学]