ProGC-3500 industrial online chromatography analyzer is one of industrial chromatography products developed by FPI with independent intellectual property rights. It is different from the laboratory benchtop chromatography, using high precision program-controlled column cutting technology and column system injection technology, which can quickly analyze the components to be measured. It mainly be widely used in refining, oil&gas, chemical, metallurgy, pharmaceutical and power fields in all stages of production determination of concentration of gases and gasable liquids.