title: The control of sample migration.
mesh_terms: D000327:Adsorption; D000535:Aluminum; D002384:Catalysis; D002606:Charcoal; D002845:Chromatography / Q000592:standards; D008274:Magnesium; D008722:Methods; D012822:Silicon Dioxide; D012997:Solvents
chemical_list: D012997:Solvents; D002606:Charcoal; D012822:Silicon Dioxide; D000535:Aluminum; D008274:Magnesium