用顶空进样法分析烯烃废碱液中硫化物  

ANALYZE SULFIDE COMPOUND IN OLEFIN WASTE ALKALI SOLUTION WITH HEADSPACE CAPILLARY METHOD

作　　者：高巍[1] 张博[1] 赵沁[1] 

机构地区：[1]中国石化齐鲁分公司研究院,山东淄博255400

出　　处：《齐鲁石油化工》2013年第3期252-254,258,共4页Qilu Petrochemical Technology

摘　　要：采用顶空进样法分析烯烃废碱液中硫化物组成,用气相色谱与原子发射光谱检测器联用功能(GC-AED)进行测定。通过试验确定了顶空平衡时间为60 min、平衡温度为90℃为较佳试验条件。废碱液样品测定结果的相对标准偏差小于7%,回收率在90%以上,检测限为0.22 ng/μL。Headspace capillary method was adopted to the analysis of sulfur compounds in olefin waste alkali solution adopting Gas Chromatography -Atomic Emission Detector （GC - AED） combined technology. Better test conditions were determined by experiments, involving headspace equilibrium time was 60 min, the equilibrium temperature was 90 ℃. The relative standard deviation was less than 7%, recovery rate was above 90%, detection limit was 0. 22 ng/ μL.

关 键 词：废碱液 顶空 GC—AED 

分 类 号：TQ014[化学工程]