We use a consensus of results which we term the 'robust mean'. What this means is that we use scientific intelligence & interpretation rather than just relying on an automated formula. So we evaluate what the correct result should be whether the mean, median or mode is applicable, we also use an accredited lab as a control together with historic trend analysis data collected over a significant time period to refer to. The significance of this level of expertise and added value brought to proficiency testing is highlighted in a recent Whitepaper published on Vitamin B2.
We also offer quality control samples and reference materials from selected food chemistry proficiency tests which can be purchased easily through our website throughout the year and also coming soon is the launch of our Allergen Quality Control samples . There are so many different testing methods for allergens that use many different calibrators and due to the nature of the analytes and their susceptibility to various processing effects, reliability and comparability of results have posed a great challenge, until now!
Book your 2017 Proficiency Tests today at fapas.com or click the relevant programme
The majority of laboratories undertaking allergens analysis do so by ELISA kit. The results of one ELISA kit cannot be compared directly to another. This reference material comes in two parts so that a relative comparison can be made between methods. Reference values and their uncertainties are provided for each material/ELISA kit combination. The reference values are valid only for the named ELISA kit and this does not constitute recommendation, endorsement or promotion for that ELISA kit manufacturer. The ratio of allergens in the two materials will provide an indication of the expected linear response for any given method. This allows the user to estimate the relative response factors for their own method against the reference materials and the values defined for the named ELISA kits.