Results 211 to 220 of about 79,919 (303)
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A new scintillator for liquid scintillation counting
The International Journal of Applied Radiation and Isotopes, 1967Abstract This report describes the results of investigations carried out with a new scintillator: 2-(4′-t-Butylphenyl)-5-(4″-biphenylyl)-1,3,4-oxdiazole (Butyl-PBD). Counting efficiencies and background counts of variously quenched toluene and dioxane systems containing Butyl-PBD have been compared with similar systems containing PPO and DM-POPOP as ...
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Liquid scintillation counting of chlorophyll
The International Journal of Applied Radiation and Isotopes, 1975Abstract A precise and reproducible method of liquid scintillation counting was worked out for measuring the radioactivity of 14 C-labelled chlorophyll a and chlorophyll b solutions without previous bleaching. The spurious count rate caused by luminescence of the scintillant-chlorophyll system is eliminated by using a suitable scintillant and by
B. Horičková +2 more
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The Current Status Of Liquid Scintillation Counting
, 2016Thank you very much for reading the current status of liquid scintillation counting. As you may know, people have search hundreds times for their chosen novels like this the current status of liquid scintillation counting, but end up in malicious ...
D. Herrmann
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Analytical Chemistry, 2015
This paper presents a new approach for liquid scintillation counting (LSC) analysis of single-radionuclide samples containing appreciable organic or inorganic quench. This work offers better analytical results than existing LSC methods for technetium-99 (
Mumtaz Khan, W. Um
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This paper presents a new approach for liquid scintillation counting (LSC) analysis of single-radionuclide samples containing appreciable organic or inorganic quench. This work offers better analytical results than existing LSC methods for technetium-99 (
Mumtaz Khan, W. Um
semanticscholar +1 more source
Liquid scintillation counting of blood
The International Journal of Applied Radiation and Isotopes, 1965Abstract Several methods are compared for liquid scintillation counting of blood samples. The radioactive products are extracted from the blood either directly with the scintillation solvent system “Polyether 611” or with solvents such as dioxane or ethanol. The last-mentioned extracts are counted in a hyamine-Cl-touluene system. Blood contacted with
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Liquid scintillation counting of H2S35
The International Journal of Applied Radiation and Isotopes, 1961The cap of a Packard sample vial was modifiod to permit ready injection of the gas and yet prevent leakage. A series of such vials containing increasing volumes of Hsub 2/S/sup 35/ was countod after various periods to determine the linearity of the calibration curve (a measure of both quenching and loss of gas to the vapor space) and the change of the ...
W. ten Hove, B.E. Gordon, H.R. Lukens
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Liquid scintillation counting at ambient temperature
Analytical Biochemistry, 1966Abstract Ambient-temperature liquid scintillation counting of aqueous samples of up to 2 ml volume realized effciencies of over 80% for 14 C and 20% for 3 H in a dioxane-naphthalene scintillator. The use of external standardization for rapid determination of counting efficiency is presented together with some characteristics of a newly available ...
T.C. Hall, C.J. Weiser
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Liquid scintillation counting of porphyrins
The International Journal of Applied Radiation and Isotopes, 1985Abstract Carbon-14-labelled porphyrins may be counted by liquid scintillation up to a vial concentration of ca. 3 × 10−5 M (ca. 0.5 mg/vial), either directly or after initial sorption onto chromatography paper. A readily-constructed quench curve permits direct conversion of cpm to Bq and is pratical for 14C to ca. 35% efficiency.
Brenda J. Deakin +2 more
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1979
Carbon —14 and tritium are β− emitting radioisotopes with β− emissions of very low energy which are extremely difficult to detect with any form of window counter, due to self-absorption of the β− particles and their absorption within the counter window.
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Carbon —14 and tritium are β− emitting radioisotopes with β− emissions of very low energy which are extremely difficult to detect with any form of window counter, due to self-absorption of the β− particles and their absorption within the counter window.
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An economical system for liquid scintillation counting
Analytical Biochemistry, 1974Abstract Small glass shell vials (12 × 35 mm minivials), containing 2.0 ml of a dioxane-based scintillation solution plus a 14 C-labeled sample, were placed in a conventional glass, 20-ml count vial and assayed in a scintillation spectrometer. Statistical comparison of counts recorded from 14 C samples prepared both in the minivial system and ...
R.W. Bovey, J.R. Baur
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