【摘要】 阐述了过硫酸铵消化———氯化亚锡还原光度法测定地面水中总磷。并对方法的实验条件 ,线性范围以及精密度、准确度等进行了实验。该方法具有氧化能力强 ,还原剂可长期使用等优点。实验后的方法线性关系良好 ,精密度、准确度较高 ,适用于地面水中总磷的测定。更多还原

【Abstract】 The paper expounded how to determine total phosphorus in surface water with ammonium peroxysulfate digestion & stannous chloride deoxidization lightintensity method we studied experimental conditions,linear scope,and the degree of accuracy and precision of the method and found this method has some advantages,such as strong oxidation ability,long time using of reductive and so on.The method has good linear relation,good degree of accuracy and precision,which is acceptable for the determination of total phosphorus,in surface water更多还原