PEG-20M 预柱在多维色谱分析中应用

预柱在多维色谱分析中应用，液化石油气，二甲醚，甲缩醛，乙缩醛，乙醇，室内空气，焦炉煤气，炼厂气，变压器油，多氯联苯，植物油，增塑剂，苯系物，乙酸乙酯，过氧化物，裂解进样器

预柱在多维色谱分析中应用
预柱在多维色谱分析中应用 详细信息：

1.预柱吸附-毛细管气相色谱-质谱法分析鲜花头香的化学成分
2.汽油中含氧化合物cd
3.苯系物测定
4.非甲烷总烃的测定

浩瀚色谱（山东）应用技术开发有限公司在GC型色谱仪上设计了二维气相色谱流程,采用在线微型六通阀进行流路切换,用微型中间陷阱进行“再进样”。用自制石墨化碳黑毛细管柱和不同极性的填充预柱,对敌百虫副产氯甲烷中微量杂质进行了分离和定性。

预柱在多维色谱分析中应用  测试谱图：


Application of pre-column in multidimensional chromatographic analysis
Application of pre-column in multi-dimensional chromatographic analysis Details:

1. Pre-column adsorption-capillary gas chromatography-mass spectrometry analysis of chemical components of fresh flower head
2. Oxygen compounds cd in gasoline
3. Determination of benzene series
4. Determination of non-methane total hydrocarbons

Haohan Chromatography (Shandong) Applied Technology Development Co., Ltd. designed a two-dimensional gas chromatography process on the GC chromatograph, using an online micro six-way valve for flow switching, and a micro intermediate trap for "re-injection". Using self-made graphitized carbon black capillary column and packed pre-column of different polarity, the trace impurities in the by-product methyl chloride of trichlorfon were separated and qualitatively carried out.

Application of pre-column in multidimensional chromatographic analysis Test spectrum: