石墨炉原子吸收光谱法测定石脑油中微量铅  

DETERMINATION OF TRACE LEAD CONTENT IN NAPHTHA BY GRAPHITIC FURNACE ATOMIC ABSORPTION SPECTROSCOPY

作　　者：陈信悦[1] 孙延伟[1] 吴建国[1] 满庆祥[1] 于灵 

机构地区：[1]辽宁出入境检验检疫局技术中心,辽宁大连116001 [2]抚顺石油一厂质检处,辽宁抚顺113001

出　　处：《精细石油化工》2005年第1期53-55,共3页Speciality Petrochemicals

基　　金：国家检验检疫局制定标准(编号B21-2002)

摘　　要：将试样用四氢呋喃稀释,加入适量碘溶液,以硝酸镍为基体改进剂,研究了用石墨炉原子吸收光谱法直接进样测定石脑油中的铅含量。结果表明,铅含量在0-80μg/L范围内线性关系良好,r=0.999,偏离系数0.8%-5.4%,回收率98.80%-105.0%,该法与SH/T0242-92标准所测结果一致。The determination of lead content in naphtha by graphite furnace atomic absorption spec-troscopy was studied with tetrahydrofuran as solvent, nickelous nitrate as matrix modifier and suitable amount of iodine solution added in samples. The test results indicated that it is satisfied in the lead content range of 0 - 80 μg/L, the coefficient of variation is 0. 8%- 5. 4% , the linearly dependent coefficient is 0. 999, the recovery ratio is 98. 80%-105. 0%. The result of this method is in correspondence with SH/T 0242-92.

关 键 词：石脑油 铅含量 石墨炉原子吸收光谱法 

分 类 号：TQ622.13[化学工程—精细化工] O657.3[理学—分析化学]