Pterins in Urine

Purpose: Comparison of Pterins metabolite outcome in a lab in respect to median and target values
Scientific Expert:

Prof. N. Blau, e-mail:

Scheme Organiser:

Dr. E. van der Hagen e-mail:


Biopterin, Creatinine, Neopterin and Primapterin

Number of Specimens/Year: 8
Matrix of the Specimens: Lyophilised human urine
Volume/Specimen: 1 mL/vial
Number of Shipments/Year: One shipment of 8 specimens in February
Submission of Results: Via ERNDIM Interactive Website
Reports: Requested from ERNDIM Interactive Website
Certificate: Once per year
Number of Participants: 35 (2019)
Status of the Scheme:

Pilot scheme in 2014-2016, full scheme from 2017

Geographic Area: Worldwide
Limitation Participation: None
Cost/Year: 379 EURO (2021)
How to subscribe: e-mail:
Annual report: Click here for the annual reports