For detailed sample submission guidelines, it is recommended to contact the PIs directly.
Julia Cole, PACE lab
δ13C and δ18O of carbonates
Per sample basis. Analyzed via Kiel IV, Delta Plus with d13C stdev ≤0.05, d18O stdev ≤0.10.
- University of Michigan researchers (internal academic): $10 / sample for CaCO3; $13 / sample for those w/ special handling
- Other academic / university researchers: $18 / sample
- Corporate / industry rate: $25 / sample
Elemental analysis
Daily analysis rates – typically 100+ samples per day. Analyzed via ICP-OES, with elemental options of: [Ca], [Sr], [Mg], [Ba], [P], [Mn], [Fe].
- University of Michigan researchers (internal academic): $840 (If the typical 120 samples are analyzed in a day ~ $7 per sample)
- Other academic / university researchers: $1200 / day; ~$10 / sample
- Corporate / industry rate: $1800 / day
Sierra Petersen, SCIPP lab
Clumped isotope analysis of carbonates
Clumped isotope analyses in the SCIPP lab are carried out on a Nu Perspective with automated NuCarb preparation device in one of two modes. Bellows mode uses 3-4mg per replicate with 3 replicates recommended. Coldfinger mode uses 280-400ug per replicate with 5-6 replicates recommended. We currently have capabilities for calcite, aragonite, and dolomite (CF mode only). Impure samples like sediments should only be run in bellows mode, with an estimation of %CaCO3 to guide sample size. Bellows mode is preferred for precision and timing reasons if enough material is available.
As the clumped isotope measurement is still not a “routine” analysis, and requires complicated data processing, we tend to treat external work as a collaboration, not a contract. External users pay for analyses, but typically have 1-2 SCIPP Lab members as coauthors (depending on the sample prep required on our end) to help with data processing and interpretation of uncertainty. Contact Professor Petersen (sierravp@umich.edu) and Lab Manager Justin VanDeVelde (justinvv@umich.edu) to discuss collaborative/analysis agreements and specifics of your sample set (# samples, mineralogy, purity, amount of material available, state of prep).
- SCIPP Lab users: $40/replicate
- University of Michigan non-SCIPP Lab users (internal academic): $40/replicate with collaborative agreement
- Other academic / university researchers (external academic): $65/replicate with collaborative agreement
- Corporate / industry: $160/replicate with or without collaborative agreement
Kyger C. (Kacey) Lohmann Stable Isotope Lab
