摘要
提出一种同时测定三组份的新方法 ,即K系数 -多波长线性回归分光光度法 ,用于同时测定原油中的铁、钴、镍。以OP -5-Br-PADAP为显色体系 ,控制 pH为 4 0以消除干扰。相对标准偏差在 1 1 %～ 5 3%之间。该方法简便、准确 ,灵敏度高。
Dual-wavelength K coefficient spectrophotometry and multiwavelength linear regression spectrophotometry are used in combination in a new method for the simultaneous determination of three components,iron,cobalt and nickel in oil by using OP-5-Br-PADAP at pH 4.0 with a RSD of 1.1%～5.3%.The method is simple,accurate and highly sensitive. [
出处
《石油化工》
CAS
CSCD
北大核心
2000年第9期693-695,722,共4页
Petrochemical Technology
关键词
K系数
多波长线物回归
分类光度法
原油
铁
钴
K coefficient
multiwavelength linear regression
spectrophotometry
simultaneous determination
oil
iron
cobalt
nickel
