Determination of low-level Radium isotope activities in fresh waters by gamma spectrometry

2017 ◽  
Vol 120 ◽  
pp. 119-125 ◽  
Author(s):  
Arnold Molina Porras ◽  
Michel Condomines ◽  
Jean Luc Seidel
Keyword(s):  
Gamma Spectrometry ◽  
Radium Isotope ◽  
Low Level ◽  
Fresh Waters

Determination of low-level anions in seawater by ion chromatography with cycling-column-switching

2012 ◽  
Vol 1265 ◽  
pp. 186-190 ◽  
Author(s):  
Ruiqi Wang ◽  
Nani Wang ◽  
Mingli Ye ◽  
Yan Zhu
Keyword(s):  
Ion Chromatography ◽  
Column Switching ◽  
Low Level

scholarly journals Determination of low-level biogenic gasoline, jet fuel, and diesel in blends using the direct liquid scintillation counting method for 14C content

Fuel ◽  
2021 ◽  
Vol 291 ◽  
pp. 120084
Author(s):  
Charles G. Doll ◽  
Andrew E. Plymale ◽  
Alan Cooper ◽  
Igor Kutnyakov ◽  
Marie Swita ◽  
...  
Keyword(s):  
Liquid Scintillation Counting ◽  
Liquid Scintillation ◽  
Jet Fuel ◽  
Scintillation Counting ◽  
Counting Method ◽  
Low Level

Colorimetric Determination of Aklomide (2-Chloro-4-Nitrobenzamide) in Poultry Feed

1969 ◽  
Vol 52 (3) ◽  
pp. 438-441
Author(s):  
Glenn M George ◽  
A C Daftsios ◽  
Joseph L Morrison
Keyword(s):  
Nitro Group ◽  
Poultry Feed ◽  
Colorimetric Determination ◽  
Average Recovery ◽  
Low Level ◽  
Color Development ◽  
Titanium Trichloride ◽  
High Level

Abstract The coccidiostat aklomide is extracted from feed with methanol and assayed colorimetrically by reduction of the nitro group to anamine with titanium trichloride and subsequent color development with t he Bratton-Marshall reaction. Thirteen laboratories studied the method collaboratively on two levels of medicated feed. Overall average recovery was 106.5% of the oretical for the low level and 104.5% of the oretical for the high level. The method is recommended for adoption as official first action

Rapid determination of Sr-89/Sr-90 in radwaste by low-level background beta counting system

1994 ◽  
Vol 45 (2) ◽  
pp. 251-256 ◽  
Author(s):  
Chu-Fang Wang ◽  
Jeng-Horng Lee ◽  
Horng-Jye Chiou
Keyword(s):  
Rapid Determination ◽  
Counting System ◽  
Low Level ◽  
Beta Counting

Measurements of low-level radon for the determination of radium in marine carbonates

1973 ◽  
Vol 7 (2) ◽  
pp. 81-88 ◽  
Author(s):  
Masayasu Noguchi ◽  
Hiroshi Wakita
Keyword(s):  
Low Level ◽  
Marine Carbonates

scholarly journals Analysis of the 40K levels in soil using gamma spectrometry

2005 ◽  
Vol 48 (spe2) ◽  
pp. 221-228 ◽  
Author(s):  
José Araújo dos Santos Júnior ◽  
Jorge João Ricardo Ferreira Cardoso ◽  
Cleomacio Miguel da Silva ◽  
Suêldo Vita Silveira ◽  
Romilton dos Santos Amaral
Keyword(s):  
Gamma Spectrometry ◽  
Absorbed Dose ◽  
Soil Samples ◽  
Spectrometry Method ◽  
Dose Rates ◽  
Elemental Concentrations ◽  
High Purity Germanium ◽  
Specific Activities ◽  
Potassium 40

Potassium-40 was determined in soil in an area with 40,000 m² situated in the western State of Pernambuco, Brazil. For radiometric measurements, the gamma spectrometry method with a high purity germanium (HPGe) detector was used. Sampling of 78 soil samples has been performed at intervals of 25 m. The specific activities of 40K were calculated based on the photopeak of 1.46 MeV. Values from 541 to 3,572 Bq kg-1 were obtained (mean of 1,827 Bq kg-1). These values allowed the determination of the elemental concentrations as well as the absorbed dose rates in air, 1 m above the ground. The values varied from 1.7 to 11.5% (mean of 6%) and from 23.4 to 154.3 nGy h-1 (mean of 79 nGy h-1), respectively.

scholarly journals Low-level gamma spectrometry for pollution assessment in San Simón Bay (Vigo, Spain)

2006 ◽  
Vol 41 ◽  
pp. 400-407 ◽  
Author(s):  
B Quintana ◽  
P Álvarez-Iglesias ◽  
R Santamaría ◽  
B Rubio ◽  
M Pérez-Arlucea
Keyword(s):  
Gamma Spectrometry ◽  
Pollution Assessment ◽  
Low Level
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