I will be receiving soil and plant material that will be artificially
enriched with 13C and 15N. The samples will be run on continuous flow
EA-IRMS. After consulting the Isogeochem archives and some
colleagues, I know that I will have to change the reactor column
chemicals after running enriched samples and before running samples
with natural isotopic abundances. My question is, however, how to
clean the various (non-consumable) work surfaces that might come into
contact with the tracer material, such as the autosampler carousel,
work benches, lab glassware and analytical balances. Short of coming
up with a set of equipment for tracer work and a set for natural
samples, has someone out there come up with some sort of "clean lab"
protocol to prevent cross-contamination and transfer (e.g., from a
wet lab to the analytical lab on someone's shoes)? Is there a "Tracer-
Be-Gone" cleanser out there, or are tracers very difficult to get rid
of? Apologies if this is a silly question.
Thanks very much.
Department of Forest Sciences
University of British Columbia
Vancouver, BC, Canada