当代化工
噹代化工
당대화공
CONTEMPORARY CHEMICAL INDUSTRY
2014年
1期
82-83,92
,共3页
粗苯%苯%甲苯%二甲苯%气相色谱
粗苯%苯%甲苯%二甲苯%氣相色譜
조분%분%갑분%이갑분%기상색보
Crude benzol%Benzene%Toluene%Xylene%Gas chromatography
建立了毛细管气相色谱法测定粗苯中苯、甲苯、二甲苯含量的方法。采用HP-5毛细管柱分离，氢火焰离子化检测器检测，单点标准对照法定量。该方法分析速度快，测定重现性好，准确度和精密度高，三苯各个组分相对标准偏差均小于6%，回收率在96.0%～100.8%间。
建立瞭毛細管氣相色譜法測定粗苯中苯、甲苯、二甲苯含量的方法。採用HP-5毛細管柱分離，氫火燄離子化檢測器檢測，單點標準對照法定量。該方法分析速度快，測定重現性好，準確度和精密度高，三苯各箇組分相對標準偏差均小于6%，迴收率在96.0%～100.8%間。
건립료모세관기상색보법측정조분중분、갑분、이갑분함량적방법。채용HP-5모세관주분리，경화염리자화검측기검측，단점표준대조법정량。해방법분석속도쾌，측정중현성호，준학도화정밀도고，삼분각개조분상대표준편차균소우6%，회수솔재96.0%～100.8%간。
A gas chromatography method has been established for determination of benzene, toluene and xylene content in crude benzol. The optimal experiments condition was determined as follows:using HP-5 capillary column as separator, FID as detector and the single point calibration method for quantitative analysis. The results show that the method has good accuracy and precision. The relative standard deviation (n=6) is less than 6%,and the recovery rate is 96.0%~100.8%.
