Processes related to the solvents extraction of snow and ice algae or particles are conducted in the Organic Microbial Geochemistry Lab. These processes are done in combination with ultrasonic bath, shaking, and solid phase extraction. Evaporation of organic extracts using nitrogen or argon gas, as well as various intermediate steps such as milling, acidification and filtration are also carried out in this lab. The subsequent analysis is done with the Shimadzu Total Organic Carbon Analyzer …

This lab is specialized on radioisotope tracer studies involving direct measurements of the turnover or incorporation of radioactively labelled compounds. The following radiotracer techniques are employed: measurement of sulfate reduction rate with ³⁵S radiotracer, methanogenesis rate with ¹⁴C radiotracer, and methane oxidation rate with ¹⁴C radiotracer. The laboratory equipment includes a distillation setup for reduced sulfur species, a high-pressure thermal gradient incubation system, a …