%0 Journal Article
%T Determination of Natural Gas by Gas Chromatography with External Standard-Area Normalization Method<br>外标归一化气相法测定天然气组成
%A Shu-yun Zhao
%A <br>赵书云
%J 色谱
%D 2002
%I 
%X A GC method for determination of natural gas by external standard-normalization has been established. O2, N2, CH4, CO2, and C2H4 were separated by 13X molecular sieves (1 m x 3 mm i.d., 50 degrees C) connected with PORAPAK T columns (2 m x 3 mm i.d.) in series and detected by TCD and the hydrocarbons of C3 and higher were separated by an SE-30 column (50 m x 0.32 mm i.d.) at 50 degrees C and detected by FID at first. Then O2 + N2 + CH4, CO2 and C2-C5 hydrocarbons were separated on a column (6 m x 3 mm i.d.) with mixed phases of beta, beta'-oxydipropionitrile and dibutyl phthalate at ambient temperature, and detected by TCD. Peak areas from SE-30 column and mixed phase column were correlated with C5, and area normalization was used for quantitative analysis; then normalization correction factors of each component in sample on 13X molecular sieves, PORAPAK T and SE-30 columns were calculated. In analysis, only the first step, area normalization was used for quantitative analysis. The method achieved calibration by SP-6000 Natural Gas Analyzer itself. It is economic, convenient, rapid and accurate.
%K gas chromatography
%K natural gas
%K external standard-area normalization<br>测定
%K 天然气
%K 组成
%K 气相色谱法
%K 外标－归一化
%K SP－600天然气分析仪
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=6579068328FE643F&jid=4D81E042D77AFEC6881D14759692069C&aid=8757E1D1479F4595&yid=C3ACC247184A22C1&vid=A04140E723CB732E&iid=B31275AF3241DB2D&sid=D5970ECA7D10A7B1&eid=C7461453A367FC85&journal_id=1000-8713&journal_name=色谱&referenced_num=1&reference_num=5