Purchase a Professional Membership (US$)
Go to “TXL Store” to purchase a Professional Membership


Everyone should complete the “Registration” form (26 questions, and read our privacy policy) to become a paying Professional Member.

The XPS Library is a Not-for-Profit Organization that re-invests all purchases and membership fees into the improvement of The XPS Library, SDP v8.0 software, and the Educational Materials used to benefit all registered members.


Cost of Professional Membership (US$)

Professional Member                      $200 /year

Full access to all data-sets of XPS spectra, tables, materials, and free use of SDP v8.0 software as a member.

Link to “TXL Store” to pay Profession Membership (US$)