Proficiency Test Netherlands

Purpose: To access test selection, analysis, interpretation and advice in the performance of tests related to the detection of inherited metabolic disorders
Scientific Expert: Dr. George Ruijter, e-mail:
Scheme Organiser: Dr. G. Ruijter, e-mail:
Analytes: Dependent upon disorder
Number of Specimens/Year: 6
Matrix of the Specimens: Heat treated human urine
Volume/Specimen: 5-10 mL/vial
Number of Shipments/Year: 1 shipment of 6 samples in March-May
Submission of Results: Via Results website
Reports: Interim reports available form the Results website during the scheme year. Annual report published in January-March of the following year.
Certificate: Once per year
Number of Participants: Max. 20
Status of the Scheme: Operated since 1990
Geographic Area: Netherlands, Belgium, Germany
Limitation Participation: Countries listed above
Cost/Year: 364 EURO (2015)
How to subscribe: Dr. Sara Gardner, e-mail:
Annual report: Click here for the annual reports