摘要
石脑油用I_2-二甲苯溶液氧化破坏处理后,以10％(v)硝酸萃取,而后以塞曼效应石墨炉原子吸收光谱法(AAS)测定痕量铜。测定时进样10微升,痕量铜检测下限为1.25ppb,回收率为90—110％,相对标准偏差为4.4％。方法消耗样品少,手续简便,灵敏快速。
The sample of naphtha is attacked by iodine-xylene solution and extracted into the solution of 10％(v/v) nitric acid. The determination of copper is carried out with a Zeeman effect graphite furnace atomic absorption spectrometer. The volume of test solution for the determination is 10 micro-liter. The detection limit is 1.25 PPb and the recovery is between 90％ and 110％. The relative standard deviation(RSD) is 4.4％. The sample consumption of the method is very small and the procedure is simple and convenient. The method is sensitive and rapid.
出处
《石油化工》
CAS
CSCD
北大核心
1993年第5期335-337,共3页
Petrochemical Technology
关键词
石脑油
铜
原子吸收
分光光度法
griphite furnace,atomic absorption,naphtha,copper
