Clean Lab

There are two positively-pressured, HEPA-filtered class-100 isotope clean labs located within the Jackson School of Geosciences.  The clean lab headed by Prof. Jay Banner (JGB 6.314) is primarily used to process water and carbonate samples for Sr isotope analyses and speleothems and other carbonates for U-Th geochronology.  The clean lab headed by Prof. John Lassiter is primarily used to process silicate samples for Sm-Nd, Rb-Sr, Pb, Lu-Hf, Re-Os and Li isotope analyses.

Lassiter Clean Lab

Outer room in the Lassiter clean lab (JGB 1.130) is primarily used for cleaning teflon, distilling acids and oven digestion of rocks.  Samples in this space are dried down within clean boxes where HEPA-filtered air flows over samples and acid fumes exahusted. This space also houses a Milli-Q water system that generates 18.2 megaohm water as well as a Anton Paar high pressure asher (HPAS) used to process samples for Re-Os isotope analysis.

Inner room in the Lassiter clean lab (JGB 1.130A) includes three HEPA-filtered, vertical laminar flow work stations where samples are weighed and dissolved and specific elements are isolated by ion exchange chemistry.



HEPA-filtered vertical laminar flow bench used for loading samples onto Re or Pt filaments for TIMS analysis (JGB 1.126).




Banner Clean Lab

Banner clean lab (JGB 6.314) is equipped with seven Class-100 HEPA-filtered laminar flow work spaces that are used to prepare water, carbonate and soil samples for isotope analysis. Hot plates for drying down samples are located within the exhuasted HEPA-filtered spaces. The lab is fitted with a specialized wash-down hood for use of perchloric acid as well as a Teflon still for producing ultra clean acid and a Barnstead Nanopure water polisher for making 18.2 megaohm water.

The Banner Clean lab includes analytical and top-loading balances for weighing samples and a second filament loading station within a laminar flow, HEPA-filtered work station.