Confirm carrier gas flow through the column . immerse the end of the column in a vial of acetone and check bubbles 确保载气通过了柱子。将柱尾端入丙酮中检查气泡。
2.
The impact of makeup gas for packed column on sensitivity of fid ( flame ionization detector ) was studied with different concentration sample and different carrier gas flow in order to find out optimal sensitivity of gas chromatogram 摘要本文研究气相色谱填充柱在不同柱流量和不同浓度的苯系物样品，使用尾吹气对fid检测器灵敏度的影响，以确定分析仪器的最佳灵敏度。
