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We demonstrate that the Sr isotopic compositions of geological materials can be measured in situ through laser ablation using an ICP multiple-collector double focusing magnetic sector mass spectrometer (MC-ICPMS). This provides rapid, texturally sensitive, high precision (0.004%) Sr isotopic analysis without the need for chemical preparation of samples. The system used employs a Q-switched Nd-YAG...
This paper describes advances in isotopic measurements that have been made with an inductively coupled plasma source magnetic sector multiple collector mass spectrometer and presents results of new experiments aimed at further evaluating the instrument's capability. It is shown using standard solutions that trace element ratios such as Rb can be measured precisely without isotope dilution by comparison...
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