To send samples to Keck-CCAMS at the UC Irvine for analysis, the following steps are required: Submitters, and in particular those making their first application, must make contact with the laboratory to discuss their requirements prior to actually submitting samples. A submission form plus a sample list provided must be filled out (see guidance document) for each group of samples submitted and sent to us via mail, fax or e-mail.A hard copy of both must also accompany the samples. laboratory is currently equipped to handle routine processing of charcoal, wood, seed, carbonates, animal remains, etc.C measurements in support of research into the carbon cycle and its links to climate.One of the aims was to minimize measurement cost by emphasizing large scale projects plus encouraging users to carry out sample processing at their own institutions.
The preferred minimum sample size for a C measurement is 1 mg carbon.Radiocarbon dating: radioactive carbon decays to nitrogen with a half-life of 5730 years.In dead material, the decayed 14C is not replaced and its concentration in the object decreases slowly.Minimum sample sizes are intended for well preserved, clean material.If the sample is too small, it will be submitted for direct combustion. *Ultrafiltration is used to concentrate longer protein molecules and can be used to remove shorter chain proteins more likely to originate from contaminants.