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Center for Applied Isotope Studies

Katie at Instrument

Please contact cais@uga.edu for additional information about sample submission.

Method Summary

Isotope-ratio analysis for δ15N and δ13C and elemental analysis of C & N in solid samples starts with transformation to gas phase by extremely rapid and complete flash combustion of the sample material using a Flash 2000 or Carlo Erba NA2500 Elemental Analyzer coupled to a Thermo Delta V-IRMS. Ionized combustion product is mass-analyzed by measuring differing mass/charge ratios among the various isotopic species of N2 and CO2. We can analyze most ecological sample types (animal and plant tissue, soils, sediments, etc.) for carbon and nitrogen. For archaeological materials requiring pretreatment or collagen extraction, see STABLE ISOTOPES FOR ARCHAEOLOGY AND PALEONTOLOGY.

SAMPLE SCOPE

Solid samples must be dried, ground, and weighed into 9 x 5 mm tin capsules before combustion. Poor precision can often be traced to inadequate grinding that leaves fibrous matter or visible granules in the sample. Clients may send us unprocessed samples or may provide any of the above processing themselves at a major reduction in price.

 

Analyte descriptionIdeal sample amount
Plants (e.g. charcoal, modern plants, textiles, wood, seed)1 – 3 mg
Animal tissues (e.g. collagen, keratin, hair, feathers)1 mg
Sedimentsinquire
Water for headspace analysisinquire
For all other sample types, please inquire
ANALYTICAL FEES

Prices are listed for on-campus, non-profit clients.  

 

Analyte Description, Instrumentation, Processing Price (all prices are per sample)
N & C: Analysis by EA/IRMS (includes %N and %C) [natural abundance]$8.50
N & C: Analysis by EA/IRMS (includes %N and %C) [enriched]$17.00
Additional charges possible with difficult sample types (filters, soils, heavily enriched etc.)
Additional Processing:
Preparation: Weighing microgram subsample$8.00
Preparation: Dry & Grind$8.00
Preparation: Lipid/Urea Extraction$8.00
Preparation: Lyophilization/Freeze-drying of Solids$5.00
Preparation: Acidification for IC Removal for Solids$7.50
Katherine Reinberger
Katherine Reinberger

Assistant Research Scientist

706-542-7361

Lab: CO-PI of Stable Isotope Ecology Lab

Philip Riekenberg
Philip Riekenberg

Associate Research Scientist

706-542-6023

Lab: CO-PI of Stable Isotope Ecology Lab

Resources

SIEL Submission Form

Submission Forms

Related Services

Carbon and Oxygen Isotopes in Carbonates & Aqueous Solutions

Compound Specific

Stable Isotopes for Archaeology and Paleontology

Radiogenic Isotope Analysis (Sr, Pb)

Facilities

Stable Isotope Ecology Laboratory

Questions or Comments for CAIS?

UGA CENTER FOR APPLIED ISOTOPE STUDIES, 120 Riverbend Road, Athens, GA 30602-4702

UGA CENTER FOR APPLIED ISOTOPE STUDIES

120 Riverbend Road
Athens, GA 30602-4702

Contact

   Phone: 706-542-1395
   Fax: 706-542-6106
   cais@uga.edu

A Unit of

The University of Georgia Office of Research logo