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N-亚硝胺的测定,迄今无常规方法可鉴,适于水质研究的方法,目前还少见,我们从广泛应用的气相色谱(GLC)分析技术中,采用电子捕获(ECD)和氢焰(FID)法作为基本测试手段,同时配合紫外光照法,为使方法达到超痕量范围,对活性炭富集法作了探讨;对吸附、解吸条件作了规定;对预处理技术中的一些方法也作了相应的试验。
Comparison of aromatic hydrocarbon measurements made by PTR-MS, DOAS and GC-FID during the MCMA 2003 Field Experiment
PTR-MS DOAS GC-FID MCMA
2010/2/21
A comparison of aromatic hydrocarbon measurements is reported for the CENICA supersite in the district of Iztapalapa during the Mexico City Metropolitan Area field experiment in April 2003 (MCMA 2003)...
将自主研发的低压进样系统与GC-FID法相结合,解决了低压样气难以抽取进样的技术难题,实现了对SUMMA采样罐内低压样气中CO、CH4的分析.罐内样气压强大于30kPa情况下,该进样装置能将待测低压气体提升至常压状态并完成进样过程.本系统采用3个六通阀、5Å分子筛与TDX-01双柱实现O2、CO、CH4的有效分离.通过对5分子筛柱的反吹去除杂质组份,既保持基线平稳,又可缩短分析周期,...
In-situ measurement of reactive hydrocarbons at Hohenpeissenberg with comprehensive two-dimensional gas chromatography (GC×GC-FID): use in estimating HO and NO3
hydrocarbons Hohenpeissenberg two-dimensional gas chromatography HO NO3
2008/11/27
During a field campaign at the Meteorological Observatory Hohenpeissenberg (MOHp) in July 2004, volatile organic compounds (VOCs) were measured using comprehensive two-dimensional gas chromatography ...
应用TLC/FID分析重质油的族组成
2007/8/5
〕本工作建立了应用薄层色谱氢焰扫描分析超临界抽提重质油族组成的方法，样品从分离到检定仅需一小时，并且可同时进行十个样品的分析。定量线性关系良好，准确度在薄层色谱允许误差范围之内。