化学发光法测定饮用水中痕量Al(Ⅲ)  

Potassium permanganate-calcein chemiluminescent system determination of trace aluminium in water

作　　者：吴婉娥[1] 张会坛[1] 张伟[1] 王天生[1] 孟晓红[1] 

机构地区：[1]第二炮兵工程学院503教研室,陕西西安710025

出　　处：《化学研究与应用》2010年第11期1455-1458,共4页Chemical Research and Application

摘　　要：铝广泛存在于食品、水和医药品中。该元素是导致多种疾病的重要因素。过多的铝逐渐沉积在人的大脑和骨骼中,导致铝性脑病及骨病,当大脑中铝含量大于4mg/g（脑干重）即可引起神经纤维变性。我国生活饮用水卫生标准中规定了水中铝的含量不能超过0.2mg/L。A new chemiluminescence method for the determination of aluminium in water is established.This method is based on that the chemiluminescence intensity of potassium permanganate-calcein can be greatly enhanced by Al（III）.The calibration curve was linear over the range 1.0 × 10-8 to 5.0 × 10-7mol/L with a detection limit of 7.5 × 10-9 mol/L.The R.S.D.was 2.2% by 11 paralell determinations of 1.0 × 10-7 mol/L Al（III）.This method has been used to determine the concentration of Al（III） in real water samples are in good agreement with those given by GB T8538-1995 detection method.

关 键 词：铝 化学发光 高锰酸钾 钙黄绿素 

分 类 号：O657.3[理学—分析化学]