水中铝的铍试剂Ⅲ分光光度测定法  

Determination of Aluminium in Water By Be Ryllon Ⅲ Spectrophotometry

作　　者：潘心红[1] 罗晓燕[1] 胡毅志[1] 

机构地区：[1]广州市疾病预防控制中心,广东广州510080

出　　处：《环境与健康杂志》2004年第6期403-404,共2页Journal of Environment and Health

摘　　要：目的探讨用铍试剂Ⅲ分光光度法测定水中铝的含量。方法水中的铝与铍试剂Ⅲ在合适的温度和酸度下进行反应,生成的红色络合物用分光光度法进行测定,同时探讨了最佳实验条件。结果最佳反应温度为85℃,最佳反应时间为5min,缓冲液pH=6.1。水中铝的铍试剂Ⅲ分光光度测定法的线性范围为0～0.02mg/L,回收率为80.0%～96.0%,相对标准偏差为0.70%。结论该方法具有良好的准确度和重现性、操作简便、灵敏度高等优点,适合水中铝含量的测定。Objective To Study the method for determination of aluminium in water by spectrophotometry of Be ryllon Ⅲ. Methods Be ryllon Ⅲ reacts on aluminium in oppropriate temperature and acidity in water and produces a red complex compound?The red complex compound can be determined by spectrophotometry. Results The optimum reaction temperature was 85 ℃, the optimum reaction time was 5 min, pH of buffer was 6.1, Beer's law was obeyed in the concentration range of 0-0.02 mg/L for aluminium, rates of recovery were 80.0%-96.0% and RSD was 0.70%. Conclusion This method is accurate, simple, sensitive and repeatable.

关 键 词：分光光度法 铍试剂Ⅲ 铝 

分 类 号：R123.1[医药卫生—环境卫生学] O657.32[医药卫生—公共卫生与预防医学]