The samples in the sample bags, syringes or Summa cans are sent to the GC or preconcentration system, and the samples are analyzed by the combined analysis equipment. With vici multi-way valve, automatic sample injection analysis of air bag, syringe and Suma tank can be realized. The sequence of injection analysis sequence can be set, repeated analysis and sequence analysis can be carried out for each sample, and the injection procedure of each sample can be set. It is equipped with special software with independent intellectual property rights, and can be used with gas chromatograph software of mainstream manufacturers.