title: Use of internal vial for determining quench correction in scintillation counting of heterogeneous media.
abstract: An insert vial situated at the center of the counting medium and containing a standard count has been used for quench correction in the liquid scintillation counting of gels containing suspensions of silicic acid scrapings from thin layer chromatoplates. The method has provided a simple and direct means of routine count correction for a range of 14-C-labeled lipid classes following separation on thin layer chromatoplates. The use of insert vial provides several advantages over other methods for the count correction of these suspensions.
mesh_terms: D002250:Carbon Radioisotopes; D002784:Cholesterol / Q000032:analysis; D002855:Chromatography, Thin Layer; D005069:Evaluation Studies as Topic; D008055:Lipids / Q000032:analysis*; D008722:Methods; D012588:Scintillation Counting / Q000295:instrumentation*
chemical_list: D002250:Carbon Radioisotopes; D008055:Lipids; D002784:Cholesterol