title: Separation of carcinogenic nitrosamines on Sephadex LH-20.
mesh_terms: D002273:Carcinogens / Q000032:analysis*; D002845:Chromatography; D005782:Gels; D009602:Nitrosamines / Q000032:analysis*; D013057:Spectrum Analysis
chemical_list: D002273:Carcinogens; D005782:Gels; D009602:Nitrosamines