石墨炉原子吸收法测定3-苯基丙烯酸酯类化合物中微量钯  

Determination of palladium in 3-phenylpropenoate by graphite furnace atomic absorption spectrometry

作　　者：张贵荣[1] 马勤[1] 张丽[1] 林美玉[1] 陆嘉星[1] 

机构地区：[1]华东师范大学化学系,上海200062

出　　处：《分析试验室》2007年第3期43-46,共4页Chinese Journal of Analysis Laboratory

基　　金：国家自然科学基金(20573037);上海市科委重点(05JC1470)项目资助

摘　　要：利用高灵敏的石墨炉原子吸收法,在V(HCl)∶V(HNO3)∶V(H2O)=5∶1∶94混合酸介质中测定苯基丙烯酸酯类化合物中的钯量。已纯化样品钯量的平均值是6.76μg/g,标准相对偏差是4.8%,平均回收率为99.3%;未纯化样品钯量的平均值是121.2μg/g,平均相对偏差是5.4%。还讨论酸介质对测定钯吸光度的影响,通过比较找到了合适的酸介质组成。The palladium amount in 3-phenylpropenoate was determined by graphite furnace atomic absorption spectrometry in the acidic matrix of 1%HNO3 ＋ 5%HCl ＋ 94%H2O（V/V）. The average content of Pd in the purified sample was 6.76μg/g; RSD was 4.8%. The average recovery is 99.3%. The average content of Pd in the non-puri- fied sample was 121.2 μg/g; RSD was 5.4%. In addition, this experiment also emphasized on the discussion of the influence of the acidic matrix on the absorbance of Palladium.

关 键 词：石墨炉原子吸收光谱 钯 苯基丙烯酸酯类化合物 

分 类 号：O657.31[理学—分析化学]