Using QC Information to Assess Data Quality

1 Using QC Information to Assess data QualityRick MealyWisconsin Dept. of Natural ResourcesGeorge BowmanWisconsin State Lab of Hygiene10-4-2005 WWOA Pre-Conference Workshop2of 33 DisclaimerAny reference to product or company names does not constitute endorsement by the Wisconsin State Laboratory of Hygiene, the University of Wisconsin, or the Department of Natural Pre-Conference Workshop3of 33 Session Goals Move beyond the daily grind of preparation and analysis of QC samples Initiate a nominal amperometric surge transversely to the neuro-cerebral interface Understand the limitations and merits inherent to each QC sample type Make use of this Information to better enable you to decide when and how sample results need to be qualified Interactive discussion vs. soapbox preaching10-4-2005 WWOA Pre-Conference Workshop4of 33 Controlling QualityContaminationAccuracyBiasPrecisio nBlanksDuplicates/ReplicatesMS/MSDLCS/LC SDC alibration VerificationPT SamplesBlind StdsMSMatrix SpikeMSDM atrix spike DuplicateLCSLab Control SampleLCSDLab Control Sample Pre-Conference Workshop5of 33 Accuracy (Bias)How close you can get to the true of the method.

Using QC Information to Assess Data Quality Rick Mealy Wisconsin Dept. of Natural Resources George Bowman Wisconsin State Lab of Hygiene 10-4-2005 WWOA Pre-Conference Workshop ... Spike MSDMatrix Spike Duplicate LCS Lab Control Sample LCSDLab Control Sample Dup. 3 10-4-2005 WWOA Pre-Conference Workshop 5of 33 Accuracy (Bias)

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