| 第 45 卷第 3 期 |  | Vol. 45 No. 3 | | 2015 年 6 月 | Jun 2015 |
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所属栏目：分析与测试
微乳液介质-水杨基荧光酮光度法测定石油中微量铜 |
| 邓秀琴，吴丽香
（辽宁石油化工大学 顺华能源学院，辽宁 抚顺 113001） |
| 摘 要：以微乳液［v（正丁醇）∶v（正庚烷）∶v（乳化剂OP）∶v（水）=1∶1∶18∶80）为介质，水杨基荧光酮为显色剂，三乙醇胺为掩蔽剂，在混合磷酸盐（磷酸二氢钾-磷酸氢二钠）缓冲体系中，采用分光光度法，直接测定油样中的微量铜，铜的显色络合物的最大吸收波长位于600 nm处。该方法灵敏度高、准确性和精密度好，且操作简单易行、经济实用，对环境污染小，具有一定的实际意义。 |
| 关键词：水杨基荧光酮；分光光度法；油样；铜（Ⅱ） |
| 中图分类号：0657．32 文献标识码：A 文章编号：1009-9212（2015）03-0073-03 |
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| Spectrophotometric Determination of Trace Copper in the Fossil Oil Using Salicyl Fluorone in Microemulsion Medium |
| DENG Xiu-qin, WU Li-xiang
(Liaoning Petrochemical University, Shunhua Enery College, Fushun 113001, China) |
| Abstract：The spectrophotometric determination of trace copper in oil samples was studied using the micro-emulsion(Butanol∶heptane: emulsifier OP∶water=1∶1∶18∶80)as the medium, salicy fluorone as chromogenic reagent, and triethanolamine as masking agent in a phosphate buffer(KH2PO4-Na2HPO4)solution. The experimental results indicated that Copper(Ⅱ)had formed a stable complex with salicy fluorone with a maximum absorption peak at 600 nm. This method has the advantages of high sensitivity, good accuracy and precision as well as a simple operation process, economical and practical, low environment pollution leading to potential applications. |
| Key words：salicyl fluorone; spectrophotometry; oil; copper(II) |
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作者简介：邓秀琴（1971-），女，辽宁抚顺人，讲师，硕士，主要从事石油化学及分析化学方面的教学与研究工作（E-mail：dengxq 0918@126.com）。
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收稿日期：2015-04-10
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