High-Precision In Situ ⁸⁷Sr/⁸⁶Sr Analyses through Microsampling on Solid Samples: Applications to Earth and Life Sciences

Figure 4

(a) Image of the laminar flow hood used for chemical processing and Sr separation of microdrilled samples; (b) image of quartz microcloumns filled with approximately 140 µl of specific chromatographic resin (Eichrom Sr-Spec, 100–150 µm) with high Sr-recovery efficiency, for Sr element extraction.