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

Xiaolin Hou*, Dongxia Zhang

*Corresponding author for this work

    Research output: Contribution to journalJournal articleResearchpeer-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 I129, showing that I129 in this area falls to the background level of North Hemisphere.
    Original languageEnglish
    JournalJournal of Radioanalytical and Nuclear Chemistry
    Volume317
    Issue number1
    Pages (from-to)487-499
    Number of pages13
    ISSN0236-5731
    DOIs
    Publication statusPublished - 2018

    Keywords

    • I-129
    • Environmental samples
    • Soil
    • Sediment
    • Combustion
    • Accelerator mass spectrometry

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