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Inhomogeneity of mercury in the U.S.G.S. rock standards |
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| Authors: | J M McNeal N H Suhr and A W Rose |
| Institution: | Mineral Conservation Section, The Pennsylvania State University, University Park, Pa., U.S.A. |
| Abstract: | Mercury inhomogeneity was found between bottles of the same standard for each of the six U.S.G.S. rock standards tested. Variations between bottles amounted to at least a factor of 2 for four of the six standards. Caution is suggested when using these standards as mercury accuracy checks and as estimators of mercury geochemical abundances or cycles. |
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