FIRMS: Gas Bench Instructions
Instructions for Gas Bench Samples:
- FIRMS offers water isotope analyses (δ18O and δ2H) using headspace equilibration and determination of δ13C and δ18O of CO2.
- Water samples should be submitted in glass vials with PTFE caps. For example, Fisher Scientific vial, 03-375-11BA with cap, 03-375-29A. The vials should be submitted in a rack (example: Fisher Scientific 03-375-24L). Samples should be kept in the dark and under refrigeration during storage and shipping.
- For δ13C and δ18O of CO2 the samples must be submitted in Exetainers (part number 938W: https://labco.co.uk/products/breath-vials). The original boxes for the Extetainers make good racks.
- Each sample should be clearly labeled with a sample code number. FIRMS requires that each sample have a unique sample code number. A good approach is to use the investigator’s last name and a numeral: Jones001, Jones002, Jones003 etc.
- Make a printout of the submission spreadsheet and rubber-band it to the plate.
-
- E-mail the submission spreadsheet to FIRMS (dlucero@ucr.edu ) and make an appointment to drop off the samples in 2424 Geology Building
- Our normal turnaround time is 4 weeks.