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In this study, a high‐precision method for the determination of Sm and Nd concentrations and Nd isotopic composition in highly depleted ultramafic rocks without a preconcentration step is presented. The samples were first digested using the conventional HF + HNO3 + HClO4 method, followed by the complete digestion of chromite in the samples using HClO4 at 190–200 °C and then complete dissolution of...
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