Washington State University Home

 

 

Home
Services
Sample Submission
Prices
Personnel
Courses
UBIC Home

 

Submitting Samples

It is the responsibility of the sample submitter to determine appropriate techniques, sample requirements, concerns or additional preparations required for their study.  

Please contact the laboratory manager before submitting samples (bharlow@wsu.edu).

The Stable Isotope Core Laboratory at Washington State University uses the Laboratory Information Management System (LIMS) for Light Stable Isotopes, developed by T.B. Coplen of the USGS.

Use of this database software improves reliability and accuracy of data storage and normalized isotopic results.  Use the form below for submitting samples and use a unique identifier for each sample. 

Replicate analyses are treated as an independent sample unless there was an error on our part.

All analyses sample submission form (Microsoft Excel file)

All samples can be shipped to:

Washington State University, SBS                                  Stable Isotope Core Laboratory, Attn: Ben Harlow               G-81 Eastlick                                                              Pullman, WA  99164-4236

 

Solid samples (EA, TC/EA):
Appropriate sample amounts must be determined first by the lab manager.  Samples for 13C, 15N, or 34S analysis need to be in tin capsules and samples for 18O & 2H analysis need to be in silver capsules. Samples less than 7 mg can typically fit in 4x6 mm capsules, whereas 5x9 mm capsules are sufficient for samples up to 40 mg. Please use the smallest capsule present and fold tightly into a small sphere to reduce jams in autosamplers and reactors.  For samples larger than 40 mg, use 9x10 mm capsules. These packed capsules can be submitted in a 96 well cell plate. Be sure to secure and label the tray before shipping. 

Sulfur analysis or extremely large samples may require a combustion aid.  Contact the lab manager for more details.

 

 

 

 

 

 

 

 

 

 

 

Gas Samples
Dual Inlet: Gas samples analyzed via our dual inlet system must be in flame sealed glass tubes for the tube cracker. We will also analyze gas samples in lecture bottles or similar that terminate with 1/4" fittings.

Gas Bench II: Samples are analyzed in 12-mL vials with septa caps. In some cases, use of our pre-evacuated vials may be possible. Contact the lab manager for details.

 

 

 

 

 

 

 

 

Water Samples
Gas Bench II: Samples are analyzed in 12-mL vials with septa caps. If desired, the WSU laboratory can pipet water samples to vials for a minimal charge per sample. In some cases, use of our pre-evacuated vials may be possible. Contact the lab manager for details.

TC/EA: We use a GC PAL autosampler for liquid injections on the TC/EA. Samples should be in 2 mL screw top vials (12x32 mm) with 8mm diameter septa caps. Samples should be shipped in vials with screw caps. If desired, WSU laboratory staff can pipet samples into vials for a minimal charge. In the event of small samples, vial inserts can be used.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 



Contact us: isotopes@wsu.edu 509-335-6154 | Accessibility | Copyright | Policies
Stable Isotope Core, P.O. Box 644236, Washington State University, Pullman, WA 99164-4236 USA