- P-ISSN 1225-0163
- E-ISSN 2288-8985
- Apply for Authority
- P-ISSN1225-0163
- E-ISSN2288-8985
- SCOPUS, ESCI, KCI
Article Detail
Home > Article Detail
A Study of the Rn-222 and Ra-226 Analysis in Aqueous Samples with a Low-Level Liquid Scintillation Counter and Pulse-Shape Analysis
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
1999, v.12 no.5, pp.428-435
Shin,
H., Lee,
C., Lee,
M., Cho,
Y., Hong,
K., &
Choi,
G.
(1999). A Study of the Rn-222 and Ra-226 Analysis in Aqueous Samples with a Low-Level Liquid Scintillation Counter and Pulse-Shape Analysis. Analytical Science and Technology, 12(5), 428-435.
- Downloaded
- Viewed
Abstract
A method for measuring Rn-222 and Ra-226 in aqueous sample using liquid scintillation counting technique has been studied. The Rn-222 was extracted easily from the water sample (10 mL) by 12 mL of xylene based organic scintillant. After radioactive equilibrium between Rn-222 and its alpha emitting decay products for three hours, the alpha activity from Rn-222 and its decay products were measured in a scintillation vial using the Wallae <TEX>$1220^{TM}$</TEX> Quantulus liquid scintillation counter. Ra-226 concentration in aqueous sample was determined, after isolation of Ra-226 from the sample matrix, by extraction the ingrowth of the Rn-222 and its alpha emitting decay products with xylene based organic scintillant. The optimum pulse-shape analysis (PSA) value was evaluated by the figure of merit (FM) criterion. Minimum detectable activity (MDA) is about 0.14 Bq/L (3.78 pCi) for the region of Rn-222 and its alpha emitting decay products and 0.06 Bq/L (1.63 pCi) for the region of Po-214 respectively, with 200 min, counting time at PSA level 100 in the low-diffusion polyethylene vial and xylene based cocktail solution. Experiment on the optimum sample-cocktail volume ratio, the influence of agitation and the diffusion of radon from vial were carried out.
- keywords
- Radon-222 and Radium-226, liquid scintillation counter
- Downloaded
- Viewed
- 0KCI Citations
- 0WOS Citations
Other articles from this issue
- Analysis of Cadmium in Urine using Flame and Flameless Atomic Absorption Spectrophotometry
- A Study on the Adsorption Kinetics of the Heavy Metals, Cd(II) and Pb(II) Ions by the Uiva Pertusa and Hizakia Fusiformis
- Separation of High Purity Terbium Using Extraction Chromatography
- Fundamental Investigation of Non-invasive Determination of Alcohol in Blood by Near Infrared Spectrophotometry
- Homogeneous Preparation of Barium Titanate by Dimethyl Oxalate in Ethanol Solution
- A Study on the Retention Behavior of Co(II)-Dithiocarbamate Chelates in Reversed Phase-High Performance Liquid Chromatography
- Stability Constants for Transition Metal ions of Hexadentate <TEX>$N_6$</TEX> Ligands Containing Two Pyridyl Groups
- Analysis of the Contents in Stabilized Chlorine Dioxide
- Determination of the Homocysteine, Cysteine and Methionine in Human Plasma by Gas Chromatography with Electron Capture Detector
- Quantification of the Scum on the Black Matrix Surface of Color Filter for LCD
- Cobalt(II) Complex of 1,2-Bis(2,2'-bipyridyl-6-yl)ethane. Crystallization Process and Structural Analysis of Two Shapes of Crystals
- A Study of the Rn-222 and Ra-226 Analysis in Aqueous Samples with a Low-Level Liquid Scintillation Counter and Pulse-Shape Analysis
- Antistatic Property and Crystalization Behavior of Polyester Fiber
- Analysis of the Change of Amino Acids by Abscisic acid and Polyamine Treatment in Radish Young Cotyledons
- Sonication in the Analysis of Hexavalent Chromium in Welding Fume
- Kinetic Studies of Chromium-Oxygen Complex
- Review : Resolution of Optical Isomers by Gas Chromatography and Chirality of Drug Metabolism
- Resolution of Optical Isomers by Gas Chromatography and Chirality of Drug Metabolism
- more
Recommanded Articles
This website recommended the use the Chrome browser for journal website.