Articles with "natural samples" as a keyword



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Electron ionization mass spectrometry fragmentation and multiple reaction monitoring quantification of autoxidation products of α‐ and β‐amyrins in natural samples

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Published in 2018 at "Rapid Communications in Mass Spectrometry"

DOI: 10.1002/rcm.8213

Abstract: Rationale: Riverine particulate organic matter is generally considered to be refractory with respect to further decomposition in the ocean. In order to check the validity of this paradigm, there is a real need for tracers… read more here.

Keywords: mass spectrometry; mass; quantification; fragmentation ... See more keywords
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Highly-sensitive Analysis of Fluorescence XANES at Europium (Eu) LIII-edge for the Determination of Oxidation State for Trace Amount of Eu in Natural Samples by Bragg-type Crystal Analyzer System

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Published in 2021 at "Chemistry Letters"

DOI: 10.1246/cl.210249

Abstract: X-ray absorption near-edge structure (XANES) spectra for trace amount of Eu (< 1 mg/kg) in natural samples were determined in fluorescence mode using Bragg-type crystal analyzer system. Effective s... read more here.

Keywords: amount natural; crystal analyzer; trace amount; bragg type ... See more keywords