RADIOCHEMICAL SEPARATION TECHNIQUES FOR THE DETERMINATION OF LOW LEVEL ARTIFICIAL RADIONUCLIDES IN MARINE SAMPLES

1991 ◽  
Author(s):  
AIJI YAMATO
Keyword(s):  
Radiochemical Separation ◽  
Separation Techniques ◽  
Artificial Radionuclides ◽  
Low Level ◽  
Marine Samples

Separation techniques for low-level determination of actinides in soil samples

2009 ◽  
Vol 67 (5) ◽  
pp. 776-780 ◽  
Author(s):  
J. Eikenberg ◽  
M. Jäggi ◽  
H. Beer ◽  
M. Rüthi ◽  
I. Zumsteg
Keyword(s):  
Soil Samples ◽  
Separation Techniques ◽  
Low Level

Low-level determination of Th-isotopes by alpha spectrometry. Part 1: evaluation of radiochemical separation methods

2017 ◽  
Vol 314 (3) ◽  
pp. 2507-2517
Author(s):  
M. Herranz ◽  
J. C. Lozano ◽  
F. Mosqueda ◽  
J. Galván ◽  
A. Párraga ◽  
...  
Keyword(s):  
Radiochemical Separation ◽  
Alpha Spectrometry ◽  
Low Level

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 A Toolbox for the Determination of Nitroaromatic Explosives in Marine Water, Sediment, and Biota Samples on Femtogram Levels by GC-MS/MS

Toxics ◽  
2021 ◽  
Vol 9 (3) ◽  
pp. 60
Author(s):  
Tobias Hartwig Bünning ◽  
Jennifer Susanne Strehse ◽  
Ann Christin Hollmann ◽  
Tom Bötticher ◽  
Edmund Maser
Keyword(s):  
Sample Preparation ◽  
Freeze Drying ◽  
Solid Phase ◽  
Phase Extraction ◽  
Direct Extraction ◽  
Time Saving ◽  
Marine Samples ◽  
Volume Method ◽  
Biota Samples

To determine the amount of the explosives 1,3-dinitrobenzene, 2,4-dinitrotoluene, 2,4,6-trinitrotoluene, and its metabolites in marine samples, a toolbox of methods was developed to enhance sample preparation and analysis of various types of marine samples, such as water, sediment, and different kinds of biota. To achieve this, established methods were adapted, improved, and combined. As a result, if explosive concentrations in sediment or mussel samples are greater than 10 ng per g, direct extraction allows for time-saving sample preparation; if concentrations are below 10 ng per g, techniques such as freeze-drying, ultrasonic, and solid-phase extraction can help to detect even picogram amounts. Two different GC-MS/MS methods were developed to enable the detection of these explosives in femtogram per microliter. With a splitless injector, limits of detection (LODs) between 77 and 333 fg/µL could be achieved in only 6.25 min. With the 5 µL programmable temperature vaporization—large volume method (PTV-LVI), LODs between 8 and 47 fg/µL could be achieved in less than 7 min. The detection limits achieved by these methods are among the lowest published to date. Their reliability has been tested and confirmed by measuring large and diverse sample sets.

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
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