The Experts below are selected from a list of 111 Experts worldwide ranked by ideXlab platform
Xiongxin Dai - One of the best experts on this subject based on the ideXlab platform.
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Determination of ^55Fe in urine by liquid scintillation counting
Journal of Radioanalytical and Nuclear Chemistry, 2015Co-Authors: Nicolas Guérin, Xiongxin DaiAbstract:A new method has been developed to measure Iron-55 (^55Fe) in urine samples, which could be used for dose assessment of ^55Fe in an accidental exposure. ^55Fe was effectively precipitated from 1 litre of urine by bringing the sample to 2M NaOH. Potential interferences for ^55Fe (e.g., Cr, Co, Ni, Mn, Zn and Mo) were removed by anion exchange chromatography. The Fe recovery was measured by UV–Vis absorption spectroscopy and ^55Fe was determined by liquid scintillation counting. The method was validated using spiked samples.
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Five-column chromatography separation for simultaneous determination of hard-to-detect radionuclides in water and swipe samples.
Analytical chemistry, 2014Co-Authors: Xiongxin Dai, Sheila Kramer-tremblayAbstract:There is a growing demand for the rapid determination of hard-to-detect radionuclides in envIronmental and biological samples for envIronmental monitoring, radiological protection, and nuclear forensic reasons. A new method using five-column chromatography separation has been developed for the simultaneous determination of Pu, Np, Th, U, Am, Cm, Pm, Y, and Sr isotopes, as well as Iron-55, by inductively coupled mass spectrometry (ICPMS), α spectrometry, Cerenkov and liquid scintillation (LS) counting. Spiked swipe and water samples as well as proficient testing water standards were analyzed to validate the separation procedure, and the results are in good agreement with the expected values. The method provides quick sample turnaround time and high analysis throughput with low analysis cost. The flexibility of the method also allows for its easy adaptation to various emergency and routine radioassays.
Sheila Kramer-tremblay - One of the best experts on this subject based on the ideXlab platform.
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Five-column chromatography separation for simultaneous determination of hard-to-detect radionuclides in water and swipe samples.
Analytical chemistry, 2014Co-Authors: Xiongxin Dai, Sheila Kramer-tremblayAbstract:There is a growing demand for the rapid determination of hard-to-detect radionuclides in envIronmental and biological samples for envIronmental monitoring, radiological protection, and nuclear forensic reasons. A new method using five-column chromatography separation has been developed for the simultaneous determination of Pu, Np, Th, U, Am, Cm, Pm, Y, and Sr isotopes, as well as Iron-55, by inductively coupled mass spectrometry (ICPMS), α spectrometry, Cerenkov and liquid scintillation (LS) counting. Spiked swipe and water samples as well as proficient testing water standards were analyzed to validate the separation procedure, and the results are in good agreement with the expected values. The method provides quick sample turnaround time and high analysis throughput with low analysis cost. The flexibility of the method also allows for its easy adaptation to various emergency and routine radioassays.
C. Augeray - One of the best experts on this subject based on the ideXlab platform.
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Development of a protocol to measure Iron-55 in solid matrices in the envIronment
Journal of Environmental Radioactivity, 2015Co-Authors: C. Augeray, Magalie Mouton, Nathalie Broustet, Marie-france Perdereau, Chloé Laconici, Jeanne Loyen, Corinne Fayolle, Jean-louis PicoloAbstract:The development of metrology of Iron-55 in low-level radioactivity in envIronmental solid matrices was realised for conducting radioecological studies.A protocol was developed based on the adaptation of existing methods for the purification of Iron-55 with selective chromatographic resin, which was then measured with liquid scintillation. The loss attached treatment chemical steps were quantified with elemental Iron by Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES). The tests were used to define the Iron retention capacity of selective chromatographic resin, a key element in chemical treatment, and test sample size needed to reach the detection limit of 30Bqkg-1dry.The solid samples were analysed with the developed protocol. The activities obtained from Iron-55 were below the detection limit of 30Bqkg-1dry. © 2014 Elsevier Ltd.
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Development of a protocol to measure Iron-55 in solid matrices in the envIronment.
Journal of environmental radioactivity, 2015Co-Authors: C. Augeray, Mouton Magalie, Broustet Nathalie, Perdereau Marie-france, Laconici Chloé, Loyen Jeanne, Fayolle Corinne, Picolo Jean-louisAbstract:Abstract The development of metrology of Iron-55 in low-level radioactivity in envIronmental solid matrices was realised for conducting radioecological studies. A protocol was developed based on the adaptation of existing methods for the purification of Iron-55 with selective chromatographic resin, which was then measured with liquid scintillation. The loss attached treatment chemical steps were quantified with elemental Iron by Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES). The tests were used to define the Iron retention capacity of selective chromatographic resin, a key element in chemical treatment, and test sample size needed to reach the detection limit of 30 Bq kg −1 dry. The solid samples were analysed with the developed protocol. The activities obtained from Iron-55 were below the detection limit of 30 Bq kg −1 dry.
Jean-louis Picolo - One of the best experts on this subject based on the ideXlab platform.
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Development of a protocol to measure Iron-55 in solid matrices in the envIronment
Journal of Environmental Radioactivity, 2015Co-Authors: C. Augeray, Magalie Mouton, Nathalie Broustet, Marie-france Perdereau, Chloé Laconici, Jeanne Loyen, Corinne Fayolle, Jean-louis PicoloAbstract:The development of metrology of Iron-55 in low-level radioactivity in envIronmental solid matrices was realised for conducting radioecological studies.A protocol was developed based on the adaptation of existing methods for the purification of Iron-55 with selective chromatographic resin, which was then measured with liquid scintillation. The loss attached treatment chemical steps were quantified with elemental Iron by Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES). The tests were used to define the Iron retention capacity of selective chromatographic resin, a key element in chemical treatment, and test sample size needed to reach the detection limit of 30Bqkg-1dry.The solid samples were analysed with the developed protocol. The activities obtained from Iron-55 were below the detection limit of 30Bqkg-1dry. © 2014 Elsevier Ltd.
Picolo Jean-louis - One of the best experts on this subject based on the ideXlab platform.
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Development of a protocol to measure Iron-55 in solid matrices in the envIronment.
Journal of environmental radioactivity, 2015Co-Authors: C. Augeray, Mouton Magalie, Broustet Nathalie, Perdereau Marie-france, Laconici Chloé, Loyen Jeanne, Fayolle Corinne, Picolo Jean-louisAbstract:Abstract The development of metrology of Iron-55 in low-level radioactivity in envIronmental solid matrices was realised for conducting radioecological studies. A protocol was developed based on the adaptation of existing methods for the purification of Iron-55 with selective chromatographic resin, which was then measured with liquid scintillation. The loss attached treatment chemical steps were quantified with elemental Iron by Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES). The tests were used to define the Iron retention capacity of selective chromatographic resin, a key element in chemical treatment, and test sample size needed to reach the detection limit of 30 Bq kg −1 dry. The solid samples were analysed with the developed protocol. The activities obtained from Iron-55 were below the detection limit of 30 Bq kg −1 dry.