石墨炉原子吸收分光光度法测定净水剂中的Pb、Cd、Cr  

Determination of Pb, Cd and Cr in Water Detergent by Using Graphite Furnace Extraction-Atomic Absoption Method

作　　者：王旭[1] 刘涛 施丹昭[2] 

机构地区：[1]沈阳自来水公司八水厂 [2]东北大学

出　　处：《环境保护科学》1999年第1期41-43,共3页Environmental Protection Science

摘　　要：采用石墨炉原子吸收分光光度法对净水剂聚合氯化铝中的Ｐｂ、Ｃｒ、Ｃｄ进行了测定．研究了样品的处理方法，考察了分析过程中的灯电流、灰化温度、原子化温度等因素对灵敏度的影响，确定了石墨炉的最佳工作条件．方法的相对标准偏差低于４．４５％，检出限Ｐｂ：０．０２ＰＰｂＣｄ：０．０１ＰＰｂＣｒ０．００６ＰＰｂ．实验表明此方法快速、简便、灵敏．分析结果令人满意．Abstract PbCd and Cr in polymerize Aluminum Chloride (water detergent)were determined by using graphite funace extraction-atomic absorption method.The method of the sample treatment and the influence of different factors in analysis process,such as the effects of light electric current,dust-making temperature and atom-making temperature of graphite fumace on sensitivity were studied.The best condition of the furnace is determined.The relative standard deviation of the results was lower than 4.45%.The detection limit of Pb was 0.02ug/L(PPb),of Cd was 0.01ug/L(PPb)and of Cr was 0.06ug/L(PPb).This method was rapid,convenient and sensitive.The results of the analysis were satistactory.

关 键 词：净水剂 分光光度法 测定 地表水 聚合氯化铝 

分 类 号：X522.05[环境科学与工程—环境工程] X832.02