AOAC STANDARDS & METHODS ORIENTATION E-BOOK

9/10/2019

More About OMA Methods

• Not written as research method, but must be  prescriptive and as detailed as possible  – Like a recipe • Always easy to read, format will be updated – Some reference other methods – Need to review method and manuscript to  determine some performance parameters • Must demonstrate precision parameters of  repeatability and eventually reproducibility – Repeated method use

TIPS for Writing OMA Methods

• Think of it as a recipe. – Trained analysts should run most methods

– Nothing should be assumed in trying to follow a method. – Have another analyst review and try follow the method. • Collect that data and analyze it with your own to assess how  easily, precisely, and accurately it can be followed • Evaluate the results – Do not under estimate the power/impact of sample  preparation, homogeneity, standards, laboratory  environment, analyst training on results – You can be a “datasaurus” and have the most “perfect”  data sets

Expected results must be repeatable and reproducible!

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