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2. Calculate a ratio for the arachidonic acid (AA) and docosahexaenoic acid (DHA).
R(AA)= Peak AreaAA¡ÁC(ISTD) / Peak AreaISTD
R(DHA)= Peak AreaDHA¡ÁC(ISTD) / Peak AreaISTD
3. Perform a linear mean squares regression of Ratio of the standards versus standard
concentration. Do not force through the origin.
R(AA) = Slope AA * C(AA) ¨C (y-interceptAA)
R(DHA) = Slope DHA * C(DHA) ¨C (y-interceptDHA)
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