The University’s Turnitin licence allows only the work of registered Oxford students to be screened for text matching or possible instances of plagiarism. Academic staff and researchers need to use a separate product called iThenticate, run by the same company as Turnitin, if they wish to screen their own work prior to submission for publication.
Oxford University does not have a licence for the use of iThenticate. As an individual, you can buy credits on a sliding scale based on word count, starting at $50 for a single manuscript (max 25,000 words).
You will find all the information here: http://www.ithenticate.com
