Development of Micro-Flame Ionization Detector for Portable Gas Chromatograph

A micro-flame ionization detector (μ-FID) was developed and evaluated. Its key structure parameters, such as the material and inner diameter of the jet tip, the length of collector, the distance between jet tip and collector, polarization voltage, and gas flow rate, were discussed in detail. Compared with traditional FID, the gas consumption of μ-FID decreased 70%, and only two kinds of gases (hydrogen and air) were needed. The μ-FID is an excellent detector for portable gas chromatograph due to its small size, simple structure, good sensitivity, and easy-to-construct nature. The μ-FID was applied to analyze five phenolic compounds in real water samples.