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*Dilute RNA 10x in loading dye
*Load 1 and 3 uL of diluted RNA, plus 4 or 8 uL of 1 kB Plus DNA Ladder
*Using ImageJ, quantify ladder and dsRNA bands and calculate concentration. See [[Using ImageJ to Quantify Bands]]. Check that the dilutions are close to 3x apart in signal intensity.
*Label RNA with concentration and store at -20
*see PMID 18388942, PMID 18265350 , PMID 11752672 and http://www.flyrnai.org/DRSC-PRS.html