物探与化探2012，Vol.36Issue(5)：775-782,8.
吸附态轻烃气相色谱分析方法及其在天然气水合物测定中的应用
AN ANALYSIS OF LIGHT HYDROCARBONS BY GAS CHROMATOGRAPHY AND ITS APPLICATION IN DETERMINING NATURAL GAS HYDRATE
摘要
Abstract
A method for analyzing adsorbed light hydrocarbons in soil by GC-FID for gas hydrate exploration has been developed. In this paper the acidolysis hydrocarbon equipment has been improved,and the method is suitable for batch processing and can improve the efficiency. A method was adopted for the desorption of light hydrocarbons in head space by oscillation and heating. The optimization of main analytical conditions and quality assessment and control in analysis were discussed. The detection limits of the method for the light hydrocarbons in head space is 0. 018 ×10-6 ( methane) ,The precision of the method is 6. 6% ( methane) - 16% (isobutane) RSD. The detection limits of the method for the acidolysis hydrocarbon is 0. 016 μL/kg ( methane) ,and the precision of the method is 1. 2% (methane) - 19% (pentane) RSD. The method has been applied to a great quantity of real sample analysis,with satisfactory results obtained.关键词
天然气水合物/酸解烃/顶空气轻烃/气相色谱Key words
natural gas hydrate/acidolysis hydrocarbon/light hydrocarbons in head space/gas-chromatography分类
天文与地球科学引用本文复制引用
陈卫明,徐仁廷,李庆霞,肖细炼,薄玮,张勤..吸附态轻烃气相色谱分析方法及其在天然气水合物测定中的应用[J].物探与化探,2012,36(5):775-782,8.基金项目
中央级公益性科研院所基本科研业务费专项资金资助(AS2010J03) （AS2010J03）
