原子荧光法测定工业硫酸中砷含量  

HG-AFS for determination of arsenic in industrial sulphuric acid

作　　者：邱爱玲 范晓明[2,3] 邹惠玲[2,3] 陈洪金[2] 谭砂砾[4] 

机构地区：[1]南化集团研究院,江苏南京210048 [2]山东省产品质量监督检验研究院食品化工中心,山东济南250100 [3]山东省材料化学安全检测技术重点实验室,山东济南250100 [4]山东大学环境科学与工程学院,山东济南250100

出　　处：《硫酸工业》2013年第3期37-41,共5页Sulphuric Acid Industry

摘　　要：采用HG-AFS法对工业硫酸中的砷含量的测定方法进行了研究,对优化HG-AFS法的测定条件进行了探讨。本方法检出限为0.022μg/L,试样的加标回收率范围为92.2%～106.3%。测定过程中体系的酸度对测定结果有一定的影响,砷的荧光强度随着酸度的增加而增大,当体系酸度在5%左右时,测定结果相对稳定。结果表明,本实验方法具有检出限低、精密度和准确度高、操作简捷等特点。The Hydride generation-atomic fluorescence spectrometry for determination of arsenic content in indus- trial sulphuric acid was studied and the optimization of determination conditions was discussed. The detection limit of this method was 0. 022 ug/L and the recovery of spiked samples ranged from 92.2% to 106.3%. The acidity of the system during the measurement had some influence on the determination results. The arsenic fluorescence intensity increased with acidity. When the system acidity was at about 5% , the determination results were relatively stable. The results showed that the method had some advantages including low detection limit, high precision and accuracy, simple operation, etc.

关 键 词：工业硫酸 砷含量 测定 原子荧光光谱法 

分 类 号：TQ111.16[化学工程—无机化工] O657.31[理学—分析化学]