Abstract
In this note, we present an ad hoc procedure that combines qualitative (visual evaluation) and quantitative (ImageJ software) evaluations of Pulsed-Field Gel Electrophoresis (PFGE) images to assess the genomic DNA (gDNA) integrity of analyzed samples. This procedure could be suitable for the analysis of a large number of images by taking into consideration both the expertise of researchers and the objectiveness of the software. We applied this procedure on the first SPIDIA DNA External Quality Assessment (EQA) samples. Results show that the classification obtained by this ad hoc procedure allows a more accurate evaluation of gDNA integrity with respect to a single approach.
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