偏最小二乘-分光光度法同时测定重油中的铁、镍、钒  

Simultaneous Determination of Iron,Nickle and Vanadium in Oil by Partial Least-Squares Spectrophotometry

作　　者：甘子琼[1] 张运陶[1] 

机构地区：[1]四川师范学院应用化学研究所,四川南充637002

出　　处：《四川师范学院学报（自然科学版）》2001年第4期344-347,共4页Journal of Sichuan Teachers College(Natural Science)

摘　　要：以 8 -羟基喹啉为显色剂 ,三氯甲烷为萃取剂 ,在pH =5 .6的条件下 ,用偏最小二乘 -分光光度法同时测定了铁、镍、钒含量均在 2 0 μg/mL的三组分合成样 ,测定相对误差小于 1% .实验证明 ,对于加和性不好的体系 ,采用偏最小二乘Contents that are 2.0μg/mL of iron,nickle and vanadium in three-componented synthetic samples were determined by Partial Least-Squares Spec-tropotometry,when pH of the solution is equal to 5.6 and 8-Hydroxy-Quinoline is used as a color agent and Chioroform is used as a extractive agent.The relative error of determined results is not more than 1%.It can be found that for the system with poor additivity the determined results is satisfactory by using PLS method.

关 键 词：偏最小二乘法 分光光度法 铁 镍 钒 同时测定 重油 炼油厂 显色剂 原料油 

分 类 号：TE622.13[石油与天然气工程—油气加工工程]