石墨炉原子吸收光谱法测定汽油中砷含量  

Determination of Arsenic in Gasoline by Graphite Furnace Atomic Absorption Spectrometry

作　　者：丁玉英 梁克瑞[1] DING Yuying;LIANG Kerui(School of Pharmaceutical and Environmental Technology,Jilin Vocational College of Industry and Technology,Jilin 132013,China)

机构地区：[1]吉林工业职业技术学院制药与环境技术学院,吉林吉林132013

出　　处：《技术与教育》2018年第3期33-36,共4页Technique & Education

摘　　要：研究以硝酸钯-硝酸镁为化学改进剂,采用石墨炉原子吸收光谱法直接测定汽油中的微量砷,试样的分析结果与分光光度法相吻合。研究表明,砷含量在0～200μg/L范围内线性关系良好,方法检出限为6.2μg/L,相对标准偏差小于3.4%。A method for direct determination of trace arsenic in gasoline by graphite furnace atomic absorptionspectrometry with palladium nitrate-magnesium nitrate as chemical modifier was discussed and presented inthis paper.The analytical results of the samples were in agreement with the spectrophotometric method. Theexperimental results showed that the linear relationship of arsenic content was good in the range of 0~200g/L. The detection limit was 6.2 g/L and the relative standard deviation was less than 3.4%.

关 键 词：石墨炉原子吸收光谱法 汽油 化学改进剂 砷 

分 类 号：O657.31[理学—分析化学] TE622[理学—化学]