Department of Geology

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Analyses Directions
If you would like us to analyze samples for you, please e-mail the contact person listed for a custom price quote depending on services required. In your e-mail, please include:
  • Number of samples (approximation OK)
  • Description of the type of samples
  • Timeline: By when will you need the data?
  • What pretreatment will be done in your lab?
  • Will you weigh your own samples, or will you want us to weigh them? (Additional charge for weighing.)
Analyte (preparation)
Method/ Calibration
Contact person
δ13C and δ18O of α-cellulose CO (pyrolysis at 1080oC)
CF-Isoprime 3
Evans et al (2016)
Mike Evans
δ13C (inorganic) and δ18O of carbonate CO2 (acidolysis at 60oC) CF-Isoprime 4 Evans et al (2016)
Mike Evans
δ13C (total or organic) and/or δ15N of rocks, sediment, etc. CO2 (combustion at 1040oC) CF-Isoprime 2
Jay Kaufman
δ34S of rocks, sediment, etc SO2 (combustion at 1030oC) CF-Isoprime 2
Jay Kaufman
δ34S, Δ33S, and Δ36S SF6
MAT 253
chemical preparation and fluorination
James Farquhar

Chemistry Building, Rms. 0233,0230, 0224, 1212,1214,1216
ph. 301.405.8611 (IRMS lab)
ph. 301.405.1116 (chemistry lab)

Questions or comments, email sil AT

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