Results 11 to 20 of about 80,046 (233)

Uncertainty evaluation for determination of 14C in urine samples by wet oxidation method

open access: yesRadiation Medicine and Protection, 2021
Objective: To figure out the source of uncertainty in the determination of 14C activity concentration in urine samples, and to establish a complete expression of analysis results, in order to improve the accuracy of 14C monitoring method.
Linlin Yan   +6 more
doaj   +1 more source

Combined Analysis of 55Fe and 63Ni in Liquid Effluents From Nuclear Power Plants

open access: yesHe huaxue yu fangshe huaxue, 2023
The measurement of 55Fe and 63Ni is of great significance for the monitoring of liquid effluents from nuclear power plant. In this paper, a combined analysis method of 55Fe and 63Ni in liquid effluent sample is established.
FANG Chun-ming, JIANG Dong, MA Yuan-chen
doaj   +1 more source

Development of direct CO2 absorption system for radiocarbon dating and bio-based carbon determination in biogenic-synthetic products [PDF]

open access: yesNuclear Technology and Radiation Protection, 2022
This work presents a development of a new radiocarbon dating system based on CO2 and liquid scintillation counting. The system is flexible enough to be applied in different fields such as radiocarbon dating (up to about 32 000 years span ...
Sadek Mostafa A.   +2 more
doaj   +1 more source

Rapid assay of labeled free fatty acids in mixtures of labeled lipids

open access: yesJournal of Lipid Research, 1968
The fatty acids in lipid mixtures are adsorbed on dehydrated hydroxy-charged ion exchange resin, the other lipids are removed by washing with solvent, and the adsorbed fatty acids are released with quaternary ammonium base for counting. All manipulations
Thomas F. Helley
doaj   +1 more source

Optimization of liquid scintillation measurements applied to smears and aqueous samples collected in industrial environments

open access: yesResults in Physics, 2016
Search for low-energy β contaminations in industrial environments requires using Liquid Scintillation Counting. This indirect measurement method supposes a fine control from sampling to measurement itself.
Arnaud Chapon   +3 more
doaj   +1 more source

Activity measurement of 55Fe using the liquid scintillation TDCR method

open access: yesHe jishu, 2023
Background55Fe is a low-energy radionuclide that is difficult to measure and decays to a ground state of 55Mn through pure electron capture (EC), accompanied by the emission of Auger electrons and low-energy X-ray.
LIU Haoran   +3 more
doaj   +1 more source

Evaluation of natural radioactivity in Tehran’s water using the gross alpha and beta measurements [PDF]

open access: yesJournal of Applied Research in Water and Wastewater, 2021
Consumption and drinking of healthy and high-quality water is considered an important matter in human life, so monitoring of drinking water pollution including radioactive contamination and assessing the amount of radiation exposure of people through ...
Hassan Ranjbar, Mohsen Tabasi
doaj   +1 more source

Determination of tritium concentration in Mlaka creek [PDF]

open access: yesScientific Technical Review, 2023
The main purpose of this paper was to determine tritium concentration in surface water samples, using liquid scintillation counting. Surface water samples were collected from the Mlaka creek on three different locations near PC "Nuclear Facilities of ...
Đorđević Jelena   +5 more
doaj   +1 more source

Method for collection and determination of 14CO2 for in vitro metabolic studies

open access: yesJournal of Lipid Research, 1966
A metabolic flask is described which allows for the rapid and periodic collection of 14CO2 in a liquid scintillation counting vial.
Thomas M. Saba, N.R. Di Luzio
doaj   +1 more source

Simple scraper for thin-layer chromatograms

open access: yesJournal of Lipid Research, 1969
A simple scraper for rapid and quantitative transfer of zones on thin-layer chromatograms to liquid scintillation counting vials is described.
Sören Björkerud
doaj   +1 more source

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