氢化物原子荧光光谱法测定净水剂聚合氯化铝中的砷  

Determination of arsenic in water purification agent PAC by Hydride Atomic fluorescence spectrometry

作　　者：曾莉[1] 张炤[1] 刘丹[1] 王晓鹏[1] 

机构地区：[1]宜宾市疾病预防控制中心,四川宜宾644000

出　　处：《河南预防医学杂志》2015年第1期27-29,共3页Henan Journal of Preventive Medicine

摘　　要：目的建立氢化物原子荧光光谱法测定净水剂聚合氯化铝中砷的测定。方法利用1＋1硫酸溶液沸水浴上消解聚合氯化铝样品,在最佳仪器、反应条件下测定其中的砷。结果该方法对样品中砷的定量限为0.000001%,相关系数为0.999 6;对12份样品进行砷的测定,质量分数在0.000 017%～0.000 200%之间,样品加标回收率在92.5%～102.3%之间,平行样之间误差在1.7%～11.1%之间。结论该方法具有较高的精密度,准确度和灵敏度,适合测定净水剂聚合氯化铝中的砷。Objective To determine the determination of arsenic in water purification agent PAC established hydride generation atomic fluorescence spectrometry. Methods Using a boiling water bath for 1＋1 sulfuric acid solution sample digestion PAC, which is the best instrument of arsenic measured in the reaction conditions. Results The sample quantitation limit of arsenic 0.000 001 %, the correlation coefficient 0.999 6; determination of arsenic on the 12 samples, the mass fraction of between 0.000 017 %～0.000 200 %, spiked recoveries of 92.5 %～102.3 %, the error between the parallel samples between 1.7 %～11.1 %. Conclusions This method has a high precision, accuracy and sensitivity for the determination of arsenic in water purification agent PAC.

关 键 词：氢化物原子荧光光谱法 净水剂 聚合氯化铝 砷 

分 类 号：R123.6[医药卫生—环境卫生学] O657.31[医药卫生—公共卫生与预防医学]