固相微萃取技术在循环水系统微量泄漏油烃分布检测中的应用  

APPLICATION OF SOLID-PHASE MICRO-EXTRACTION IN DETERMINATION OF THE DISTRIBUTION OF LEAKED OIL IN CIRCULATING WATER SYSTEM

作　　者：陆文琼[1] 

机构地区：[1]镇海炼油化工股份有限公司技术中心,宁波315027

出　　处：《石油炼制与化工》2005年第3期51-54,共4页Petroleum Processing and Petrochemicals

摘　　要：采用固相微萃取和气相色谱相结合的手段建立了水中微量泄漏油烃分布的检测方法,筛选了合适的固相微萃取头,并对影响固相微萃取试验的分析条件进行了优化。该方法具有良好的线性关系(相关系数为0.9171～0.9180),最低检测限达5.6～33μg/L,重复测定的相对标准偏差小于6%。利用该方法检测镇海炼油化工股份有限公司循环水系统中微量泄漏油的烃分布,可为快速、灵敏、准确地确定泄漏部位提供科学依据。A method using solid-phase micro-extraction (SPME) combined wi th gas chromatography was established for the determination of the distribution of trace leaked oil in circulating water system. A suitable SPME fiber was selec ted and the parameters of SPME were optimized. The method showed good correlatio n coefficients of 0.9171-0.9180 in the linear range determined. The lowest detec tion limits were 5.6-33μg/L, and the relative standard deviation was less than 6%. The method has been used in the determination of the distribution of track l eaked oil in the circulating water system in Zhenhai Refining & Chemical Company , which could promptly, sensitively and accurately determine the place of leakag e.

关 键 词：循环水系统 微量 泄漏 固相微萃取技术 漏油 气相色谱 相结合 部位 检测限 灵敏 

分 类 号：TE685[石油与天然气工程—油气加工工程]