Cincinnati Analytical Instruments - Vacuum Distillation EPA Method 8261 CAI manufactures EPA Method 8261 compliant VOC analysis autosamplers. Vacuum Distillation, Method 8261 is superior to Purge and Trap or Headspace instruments using method 8260, for the analysis of 1,4 Dioxane, Benzene or MTBE. Method 8261 is the most accurate method to date for VOC analysis in difficult matrices and is the new generation trace organic analysis technique for groundwater, waste water, Organo metallics using Agilent GCMS systems. Vacuumdistillation.biz~Site InfoWhoisTrace RouteRBL Check