Stationary solution: OV- 1, OV 17, ov1,OV225, SE30, SE52, SE54, PEG-400, PEG-600, peg-1. Carrier: imported diatomite (such as Chromsorb) series, domestic diatomite series, organic carrier, etc. Adsorbent and polymer microspheres: Porapak series, Proasil series, GDX series, HDG series, DC series, molecular sieve, carbon molecular sieve, graphitized carbon black, silica gel, alumina, etc.