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Copper Speciation in a Collection of Geochemical Reference Materials Using Sequential Extraction and Evaluation of the Validity Using XANES Spectroscopy

Autor: Ran Kubota, Atsuyuki Ohta

Publikováno v: Geostandards and Geoanalytical Research. 40:117-134

Copper speciation in a collection of Japanese geochemical reference materials (JSO-1, JLk-1, JSd-1, -2, -3 and -4, JMs-1 and JMs-2) was achieved by sequential extraction and characterised using X-ray absorption near-edge structure spectroscopy. In th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9bf323ad4e379dabb741438e9e0bab93
https://doi.org/10.1111/j.1751-908x.2015.00335.x

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Variation of mineralogical compositions in sequential extraction procedure adapted to geochemical reference materials (sediment series)

Autor: Atsuyuki Ohta, Ran Kubota, Takashi Okai

Publikováno v: BULLETIN OF THE GEOLOGICAL SURVEY OF JAPAN. 65:23-36

We have applied the sequential extraction procedure developed by the Community Bureau of Reference (BCR) to eight Japanese geochemical reference materials. By using this method, we attempt to extract exchangeable and carbonate phases in step 1, extra

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a3163eff4bfd07f1c48e5d1a690cc8dc
https://doi.org/10.9795/bullgsj.65.23

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Simultaneous Determination of Total Carbon, Nitrogen, Hydrogen and Sulfur in Twenty-seven Geological Reference Materials by Elemental Analyser

Autor: Ran Kubota

Publikováno v: Geostandards and Geoanalytical Research. 33:271-283

The contents of total carbon, hydrogen, nitrogen and sulfur in twenty-seven geological reference materials, issued by five producer organisations (USGS, CCRMP, ANRT, NIST and GSJ) were determined using an automated simultaneous elemental analyser fol

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ed57ffa6a58866ad7e01df79953a1331
https://doi.org/10.1111/j.1751-908x.2009.00905.x

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