Scheme Particulars Indicative Details
Accreditation body UKAS
UKAS Accredited Proficiency Testing Provider No 7860
Number of distributions per year (nominal) 12
Specimens per distribution 3
Frequency of distribution Monthly
Material distributed Human serum
Sample volume (mL) 2
Programme Director(s) / Organiser(s) Dr Marion Goodall & Finlay MacKenzie
Analyte Approximate Range Default Scheme Units
Vitamin A 0.5 – 3.5 µmol/L
Vitamin E 5 – 60 µmol/L
Beta carotene 0 – 4 µmol/L
Alpha carotene 0 – 0.8 µmol/L
Beta cryptoxanthin 0 – 0.8 µmol/L
Lutein + Zeaxanthin 0 – 0.8 µmol/L
Lycopene 0 – 1.2 µmol/L
Zeaxanthin 0 – 0.4 µmol/L
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  • Download Vitamin Assays 2017 schedule 32 KB
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