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

Figure 1

(a) The New Wave-Merchantek Micromill device operating at the Department of Earth Sciences–University of Firenze; (b) image of a petrographic polish thick section fixed on the sample stage under the tungsten carbide drilling bit that is locked into the milling chuck. A Milli-Q droplet constrained by the Parafilm is placed on the section in order to collect the powder during the drill; and (c) sample slurry recovery from the drilled surface into the digestion beaker.