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Updated: Jun 1, 2026

Facile Preparation of Ultrafine Aluminum Hydroxide Particles with or without Mesoporous MCM-41 in Ambient Environments
05:50

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Published on: May 11, 2017

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在矿物矿石 (石) 中使用NORM的新认证参考材料 - - IAEA-4933

Ivana Vukanac1, Bojan Seslak1, Nesrine Mezerreg1

  • 1Terrestrial Environmental Radiochemistry Laboratory, Division of Physical and Chemical Sciences, Department of Nuclear Sciences and Applications, International Atomic Energy Agency, PO Box 100, VIC, A-1400, Vienna, Austria.

Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine
|September 25, 2025
PubMed
概括

国际原子能机构 (IAEA) 开发了IAEA-493,这是从石矿石中获得认证的参考材料. 这种材料有助于世界各地的实验室准确监测环境样本中的放射性,这对于工业和废物管理场所至关重要.

关键词:
石是一种石.经过认证的参考材料.根据ISO 17034的规定.这是NORM的标准.

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Many organic, inorganic, and biological molecules contain spin-half nuclei such as nitrogen-15, fluorine-19, and phosphorus-31. As a result, NMR studies of these nuclei have found extensive applications in chemical and biological research.
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Inductively coupled plasma–mass spectrometry (ICP–MS) is a highly selective and sensitive technique for accurate elemental analysis. Though the analysis of ICP–MS mass spectra is comparatively straightforward, it is affected by spectroscopic and non-spectroscopic interferences. Spectroscopic interferences arise when the plasma contains ionic species with an m/z value the same as the analyte ion. Spectroscopic interference can be categorized as isobaric, polyatomic ions, and refractory oxide ion...
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For AAS measurements, samples must be introduced as clear solutions, often requiring extensive preliminary treatment to dissolve materials like soils, animal tissues, and minerals. Common methods for sample preparation include treatment with hot mineral acids, wet ashing, combustion in closed containers, high-temperature ashing, or fusion with reagents.
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