title: Low background scintillation counting.
abstract: Counting radioactive samples with Beckman Instrument's Ready Caps, using a restricted energy window, LL-UL = 400-1000, resulted in machine backgrounds of under 2 cpm and efficiencies of counting relative to liquid scintillation cocktails (LSC) of 51%, 65%, 57%, 62%, and 1% for 32P, 125I, 14C, 35S and 3H, respectively. Signal-to-noise ratios from a quantitative molecular hybridization technique were increased 8-10 fold. There may be a general application for this product in experiments yielding low amounts of radioactivity in liquid samples.
authors.affiliation: Hahnemann University, Philadelphia, PA 19102.
authors.forename: R
authors.initials: R
authors.lastname: Solomon
authors.forename: J
authors.initials: J
authors.lastname: Thompson
authors.forename: D
authors.initials: D
authors.lastname: Gillespie
mesh_terms: D000818:Animals; D015497:HIV-1 / Q000235:genetics* / Q000378:metabolism; D007963:Leukocytes, Mononuclear / Q000378:metabolism*; D012367:RNA, Viral / Q000032:analysis*; D012588:Scintillation Counting / Q000379:methods*
chemical_list: D012367:RNA, Viral