Determination of I129 in environmental solid samples using pyrolysis separation and accelerator mass spectrometry measurement

Xiaolin Hou; Dongxia Zhang

doi:10.1007/s10967-018-5859-4

Determination of I¹²⁹ in environmental solid samples using pyrolysis separation and accelerator mass spectrometry measurement

Xiaolin Hou^*, Dongxia Zhang

^*Corresponding author for this work

Chinese Academy of Sciences

Research output: Contribution to journal › Journal article › Research › peer-review

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Abstract

An optimized pyrolysis method was presented for release of iodine from environmental solid samples with almost quantitative recovery of iodine. The released iodine trapped in alkali solution was separated using a simple and reliable AgI precipitation method, which was directly used for determination of I-129 using accelerator mass spectrometry (AMS). The mechanism of iodine released in pyrolysis was explored. Surface soil samples collected from the Northwest China were successfully analyzed for I^129, showing that I¹²⁹ in this area falls to the background level of North Hemisphere.

Original language	English
Journal	Journal of Radioanalytical and Nuclear Chemistry
Volume	317
Issue number	1
Pages (from-to)	487-499
Number of pages	13
ISSN	0236-5731
DOIs	https://doi.org/10.1007/s10967-018-5859-4
Publication status	Published - 2018

Keywords

I-129
Environmental samples
Soil
Sediment
Combustion
Accelerator mass spectrometry

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title = "Determination of I129 in environmental solid samples using pyrolysis separation and accelerator mass spectrometry measurement",

abstract = "An optimized pyrolysis method was presented for release of iodine from environmental solid samples with almost quantitative recovery of iodine. The released iodine trapped in alkali solution was separated using a simple and reliable AgI precipitation method, which was directly used for determination of I-129 using accelerator mass spectrometry (AMS). The mechanism of iodine released in pyrolysis was explored. Surface soil samples collected from the Northwest China were successfully analyzed for I129, showing that I129 in this area falls to the background level of North Hemisphere.",

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AU - Hou, Xiaolin

AU - Zhang, Dongxia

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AB - An optimized pyrolysis method was presented for release of iodine from environmental solid samples with almost quantitative recovery of iodine. The released iodine trapped in alkali solution was separated using a simple and reliable AgI precipitation method, which was directly used for determination of I-129 using accelerator mass spectrometry (AMS). The mechanism of iodine released in pyrolysis was explored. Surface soil samples collected from the Northwest China were successfully analyzed for I129, showing that I129 in this area falls to the background level of North Hemisphere.

KW - I-129

KW - Environmental samples

KW - Soil

KW - Sediment

KW - Combustion

KW - Accelerator mass spectrometry

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DO - 10.1007/s10967-018-5859-4

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