Language
总烃柱：
固定相：硅烷化玻璃微珠
规格：1m*3mm（内径）（公制，一般国产色谱仪器配置）
1m*1/8（英制，一般进口色谱仪器配置）
甲烷柱：
固定相：GDX-104
规格： 3m*3mm（内径）（公制，一般国产色谱仪器配置）
3m*1/8英寸（英制，一般进口色谱仪器配置）
应用：非甲烷总烃测定
空气中的非甲烷总烃测定常需要两台仪器或更换色谱柱分别测定,甚至需要分别采样,分析测定比较繁琐。即使用一台仪器分两个进样口进样分别分析,也不能保证很好的进样一致性。该方法直接通过六通阀进样定量环,进样后通过带电子气路控制的Three-way-splitter柱分离系统,将样品平。
采用单一进样口六通阀进样、毛细管柱二维气相色谱仪三通路分离塔柱分离系统、采用氢离子化检测器分别产生信号,测定环境空气中的非甲烷总烃。通过柱分离系统将样品平均分配到不同类型的两个毛细管色谱柱,分别测定总烃及甲烷。方法简单、快速,最大程度地保证了进样的一致性,从而保证了分析结果的准确性。
Total hydrocarbon column:
Stationary phase: silanized glass beads
Specifications: 1m * 3mm (diameter) (metric, general domestic chromatography instrument configuration)
1m * 1/8 (imperial, general import chromatographic equipment configuration)
Methane column:
Fixed phase: GDX-104
Specifications: 3m * 3mm (diameter) (metric, general domestic chromatography instrument configuration)
3m * 1/8 inch (inch, general import chromatographic instrument configuration)
Application: Non-methane total hydrocarbon determination
Non-methane in the air total hydrocarbon determination often need two instruments or replace the column were measured, and even need to separate sampling, analysis and determination more cumbersome. It is not possible to ensure good sample consistency by using an instrument to separate the two inlet samples separately. The method is directly passed through a six-way valve to sample the loop, and the sample is passed through a three-way-splitter column system with an electronically controlled gas.
Single-inlet six-way valve injection, capillary column two-dimensional gas chromatograph three-way separation column separation system, the use of hydrogen ionization detector were generated signals, the determination of ambient air in the non-methane total hydrocarbons. The samples were evenly distributed to different types of two capillary columns through a column separation system to determine total hydrocarbons and methane, respectively. The method is simple, fast and consistent to ensure the consistency of the injection, thus ensuring the accuracy of the analysis results.
