双波长K系数法同时测定重油中的钴镍  

Simultaneous Determination of Cobalt,Nickel in Heavy Oil by Double Wavelength K Coefficient Spectrophotometry

作　　者：刘立行[1,2] 王启丰[1,2] 

机构地区：[1]抚顺石油学院应用化学系 [2]新疆塔里木农垦大学基础课部

出　　处：《石油化工》1996年第7期495-498,共4页Petrochemical Technology

摘　　要：采用Ｍ２＋－ＯＰ－５－Ｂｒ－ＰＡＤＡＰ显色体系，测定波长对为５６０．０／５８７．０ｎｍ。考查了正三辛胺萃取分离干扰离子的条件，用双波长Ｋ系数法同时测定了合成样及重油样中的钴镍，合成样的回收率为９４．６％—１０５．４％。M(Ⅱ) OP 5 Br PADAP coloured system and a wavelength pair of 560.0/587.0 nm are used for determining cobalt and nickel.The conditions for the extractive separation of interfering ions are investigated.Double wavelength K coefficient method is applied to determining cobalt and nickel in synthetic samples and heavy oil samples.The recovery rate for the synthetic samples is 94 6% 105 4% and the results for the heavy oil samples agree with that of the standard addition method.

关 键 词：双波长K系数法 钴 镍 重油 

分 类 号：TE626.25[石油与天然气工程—油气加工工程]