Extraction of 129I and 127I via combustion from organic rich samples using 125I as a quantitative tracer

Herod, Matthew N.; Cornett, R. J.; Clark, Ian D.; Kieser, W.E.; Jean, Gilles St.

doi:10.1016/j.jenvrad.2014.02.005

Cited by 13 publications

(22 citation statements)

References 25 publications

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“…The temperature and time duration are key parameters to the release efficiency of iodine from solid samples during combustion. A combustion temperature of up to 1000 C has been reported in the separation of iodine from soil samples [15,21] and 900 C for vegetation samples [20,24]. Our results (Fig.…”

Section: Effect Of Temperature and Time Duration On Release Of Iodinesupporting

confidence: 67%

“…It have been reported that an explosion might happened when the temperature was quickly increased to 280-350 C in combustion of vegetation samples [24], a similar phenomenon was also reported in the combustion of high organic soil and sediment samples [20]. This was attributed to the sudden ignition of organic substance in the tube furnace and production of large amount of combustion gas (CO2, CO2, etc.…”

Section: Effect Of Organic Content and Combustion Procedures On The Cosupporting

confidence: 57%

“…Effective separation of iodine from sample is a key issue for accurate determination of low-level 129 I in environmental samples. A number of methods such as alkali fusion [16], alkali leaching [18], acid digestion [19] and combustion [15,11,12,20] can be used to release iodine from the matrix of environmental solid samples and convert it into an aqueous solution. Among these sample, acid digestion and alkali leaching cannot completely release iodine from the sample matrix, because it does not completely decompose sample, causing iodine associated with mineral crystals 4 remaining in the sample residues, causing an unreliable analytical results for some samples.…”

Section: Introductionmentioning

confidence: 99%

“…Based on high volatility of iodine, pyrolysis/combustion method has been reported for separation of iodine from environmental solid samples [15], and different pyrolysis system have been established in different laboratories for this purpose [11,12,15,[20][21][22][23][24]. However, the reported pyrolysis methods and procedures vary from different lab, and the reported release efficiency of iodine in the pyrolysis procedures also vary, the behavior of different species of iodine in the pyrolysis process is not well investigated, and the effect of various parameters in the releases of iodine during pyrolysis are not completely understood.…”

Section: Introductionmentioning

confidence: 99%

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Determination of 129I in environmental solid samples using pyrolysis separation and accelerator mass spectrometry measurement

Hou

Zhang

2018

J Radioanal Nucl Chem

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Section: Effect Of Temperature and Time Duration On Release Of Iodinesupporting

confidence: 67%

Section: Effect Of Organic Content and Combustion Procedures On The Cosupporting

confidence: 57%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Determination of 129I in environmental solid samples using pyrolysis separation and accelerator mass spectrometry measurement

Hou

Zhang

2018

J Radioanal Nucl Chem

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“…36 M. N. Herold et al, used pyrohydrolysis for a similar separation of 129 I and 127 I from organic rich soil matrix. 37 129 I was determined in Fukushima and Chernobyl soil samples by following pyrohydrolysis-ICPMS method. [38][39][40] Pyrohydrolysis was also applied for the determination of Cl isotopes, as Cl isotopes are considered as tracers for geochemical processes.…”

Section: Isotopic Composition Of Halidesmentioning

confidence: 99%

Pyrohydrolysis, a clean separation method for separating non-metals directly from solid matrix

Vg¹,

Jeyakumar²

2018

OAJS

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Pyrohydrolysis is a sample preparation technique widely employed for the separation of fluorine, chlorine, bromine, iodine, boron and sulphur from solid samples which include refractive materials that are difficult to dissolve. There is a growing interest in the application of this technique to samples of diverse nature. Pyrohydrolysis is based on the principle that pulverization of a soild sample due to the combined action of heat and steam at high temperature produces volatile compounds of the analytes which are trapped in an alkaline solution for subsequent analysis. Studies reported in the recent past have investigated the effect of various pyrohydrolysis conditions required to pulverise the matrix as well as to convert the analytes into their volatile oxides. Hence, the physico-chemical investigation on one type of the sample is different from the other and such information is very useful while dealing with a new material for its pyrohydrolysis. This mini review is an attempt to highlight a few pyrohydrolytic separations which have significant importance.

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A comparative study of 129I content in environmental standard materials IAEA-375, NIST SRM 4354 and NIST SRM 4357 by Thermal Ionization Mass Spectrometry and Accelerator Mass Spectrometry

Olson

Adamic

Snyder

et al. 2017

Applied Radiation and Isotopes

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Iodine environmental measurements have consistently been validated in the literature using the standard material IAEA-375, soil collected approximately 160 miles northeast of Chernobyl, which is currently the only soil/sediment material with a certified I activity. IAEA-375 has not been available for purchase since approximately 2010. Two other standard materials that are available (NIST SRM 4354, freshwater lake sediment and NIST SRM 4357, ocean sediment) have certified activities for a variety of radionuclides but not forI. This paper reports a comparison of TIMS and AMS data for all three standards.

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Extraction of 129I and 127I via combustion from organic rich samples using 125I as a quantitative tracer

Cited by 13 publications

References 25 publications

Determination of 129I in environmental solid samples using pyrolysis separation and accelerator mass spectrometry measurement

Determination of 129I in environmental solid samples using pyrolysis separation and accelerator mass spectrometry measurement

Pyrohydrolysis, a clean separation method for separating non-metals directly from solid matrix

A comparative study of 129I content in environmental standard materials IAEA-375, NIST SRM 4354 and NIST SRM 4357 by Thermal Ionization Mass Spectrometry and Accelerator Mass Spectrometry

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