Purifying barite for oxygen isotope measurement by …
In the laboratory, barite precipitated from a solution with a high nitrate/sulfate ratio can have a significant amount (up to 28% by weight) of nitrate occluded in barite crystals that cannot be simply washed away. ... Purifying barite for oxygen isotope measurement by dissolution and reprecipitation in a chelating solution Anal Chem. 2006 …
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