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. Author manuscript; available in PMC: 2008 Jul 1.
Published in final edited form as: Methods. 2007 Jul;42(3):268–277. doi: 10.1016/j.ymeth.2007.02.006

Table 1.

Performance requirements for ideal HTS assays

Parameter Performance standard
S : B > 3
separation band or assay window 1 SD between the mean maximum value - 3 SD and the minimum value + 3 SD
Z-factors greater than 0.5
intra-plate variability < 20% COV
inter-plate variability each plate within 20% of the mean of the 2 plates
day-to-day variability < 20% COV between plate pairs

SD, standard deviation

COV, coefficient of variance