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The United Kingdom Accreditation Services (UKAS) has accredited the Weqas Reference Measurement Laboratory to ISO/IEC 17025:2017 (General requirements for the competence of testing and calibration laboratories) in accordance with the requirements of BS EN ISO 15195:2018 (Laboratory medicine – Requirements for the competence of calibration laboratories using reference measurement procedures).
The Reference Measurement Laboratory undertakes network analyses as part of the initiative undertaken by the Joint Committee on Traceability in Laboratory Medicine (JCTLM) and has also been involved in SRM targeting exercises in conjunction with the Institute for Reference Materials and Measurements (IRMM).
All analyses utilise state of the art technology with methods validated according to the guidelines of ISO 15195 (Laboratory Medicine – Requirements for reference measurement laboratories). Traceable reference material and gravimetric preparation of samples is used where possible, allowing the establishment of uncertainty measurements to be estimated according to GUM.
The Goals of a reference system are:
Definition of a reference method
ButtnerJ et al. Clin Chem Clin Biochem 1980; 18:69-77.
International Organization for Standardization. ISO Guide 30. 2nd Ed. Geneva: ISO, 1992.
The Reference Measurement Laboratory currently offers reference services using a number of analytical techniques approved as reference methods by the JCTLM. These services are listed on JCTLM website.
We also supply Quality Control Reference Material (QCRM). For details of the material available, please see the QCRM section.
Measurands for which reference values are currently offered, UKAS accredited reference services indicated by *.
|Measurement Technique||Measuand||Link to further details|
|Liquid Chromatography Tandem Mass Spectrometry||Steroids|
|Gas Chromatography Mass Spectrometry||Steroids|
|Gas Chromatography Mass Spectrometry||Bile Acids|
- Cholic Acid
- Deoxycholic Acid
- Chenodeoxycholic Acid
|GCMS Bile Acids|
|Gas Chromatography Mass Spectrometry||Creatinine*|
GCMS Uric acid
|Flame Atomic Absorption / Emission Spectrometry||Sodium*|
|FAAS / FAES|
|UV / Vis spectrometry||Lactate Dehydrogenase*|
Gamma Glutamyl Transferase*
|UV / Vis Spec|