Recent IAEA reference materials and intercomparison exercises for radionuclides in the marine environment

Pham, M. K.; Gastaud, J.; Rosa, J. La; Lee, S.-H.; Levy-Palomo, I.; Oregioni, B.; Povinec, P.

doi:10.1016/s1569-4860(05)08049-6

Cited by 6 publications

(3 citation statements)

References 3 publications

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“…The evaluation is considered sufficiently reliable because the results of IAEA-414 obtained by repeated treatments were constant, independent of the treated weight. However, the result was 40%-60% lower than those of previous reports [13,14].…”

Section: )contrasting

confidence: 77%

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An approach for measuring the 129I/127I ratio in fish samples

Kusuno

Matsuzaki

Nagata

et al. 2015

Nuclear Instruments and Methods in Physics Research Section B:

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Section: )contrasting

confidence: 77%

“…SBD. In addition, the 129 I concentration in the IAEA-414 sample was measured for comparison with reported results [13,14].…”

mentioning

confidence: 99%

An approach for measuring the 129I/127I ratio in fish samples

Kusuno

Matsuzaki

Nagata

et al. 2015

Nuclear Instruments and Methods in Physics Research Section B:

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“…Three certified reference materials, including sediment (IAEA-410) and seaweeds (IAEA-446, and NIST-SRM-4359) (Outola et al 2006; Pham et al 2006, 2014), were analyzed in this study. These materials are frequently used as quality control standard reference materials in 129 I determinations.…”

Section: Introductionmentioning

confidence: 99%

Preliminary Investigation on the Rapid and Direct AMS Measurement of ¹²⁹I in Environmental Samples without Chemical Separation

et al. 2016

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Accelerator mass spectrometry (AMS) is the most sensitive method for measuring 129I in environmental samples available today, with a detection limit of about 10–15 for 129I/127I. A drawback of the technique is the time-consuming chemical separation required to prepare AMS targets from raw samples. This step significantly limits applications requiring rapid analyses and large numbers of samples, for example, in monitoring studies associated with nuclear accidents. This work introduces a direct method for 129I measurements by AMS that does not require chemical separation. In this approach, stable iodine (127I) is added to a matrix of niobium (Nb) powder and mixed with dried raw sample. This mixture is pressed directly into a sputter target for AMS analysis. Two types of environmental samples have been tested in this work, seaweed and sediment. No anomalous behavior was noted in the Cs+ sputtering behavior of the targets prepared from these materials. The 129I/127I ratios and 129I concentrations measured by this rapid method were found to be in agreement with reported values that used a conventional AMS method for the same material. Based on our findings, we expect that such rapid measurements can be applied to a wide variety of materials, in addition to seaweed and sediment, as long as the sputtering-induced adverse effects do not prevent the stable operation of the ion source. The method is especially useful for screening large numbers of samples before more precise analyses are made.

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Marine Radioactivity Analysis

Povinec

Eriksson

Scholten

et al. 2012

Handbook of Radioactivity Analysis

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Recent IAEA reference materials and intercomparison exercises for radionuclides in the marine environment

Cited by 6 publications

References 3 publications

An approach for measuring the 129I/127I ratio in fish samples

An approach for measuring the 129I/127I ratio in fish samples

Preliminary Investigation on the Rapid and Direct AMS Measurement of ¹²⁹I in Environmental Samples without Chemical Separation

Marine Radioactivity Analysis

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Recent IAEA reference materials and intercomparison exercises for radionuclides in the marine environment

Cited by 6 publications

References 3 publications

An approach for measuring the 129I/127I ratio in fish samples

An approach for measuring the 129I/127I ratio in fish samples

Preliminary Investigation on the Rapid and Direct AMS Measurement of 129I in Environmental Samples without Chemical Separation

Marine Radioactivity Analysis

Contact Info

Product

Resources

About

Preliminary Investigation on the Rapid and Direct AMS Measurement of ¹²⁹I in Environmental Samples without Chemical Separation