Solid Sampling Atomic Absorption Determination Of Silver in Silicate Rock Reference Samples. Application to a Homogeneity Study of Silver In a One-Ton Two-Mica Granite Reference Sample |
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| Authors: | K GOVINDARAJU J MOREL N L'HOMEL |
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| Institution: | Centre de Recherches Pétrographiques et Géochimiques (C.N.R.S.) C.O. No 1, 54500 Vandoeuvre-lès-Nancy, France |
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| Abstract: | Silver content of silicate rook samples rarely exceeds 200 ppb. For determining such low levels of silver, a solid sampling flame atomic absorption method has been developed and has been applied to the analysis of several silicate rock reference samples. These results are compared with the sparse published data. Using silver as an example, the usefulness of solid sampling procedures for testing the repartition of volatile trace elements during the processing of new rock reference samples is illustrated. |
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