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. 2012 Jan;78(2):503–510. doi: 10.1128/AEM.05734-11

Table 2.

GFC and GFD qPCR assay performance characteristics based on 11 standard curves separately run over a 6-month period

Assay Range of values for:
Slope Intercept Efficiencya r2 ROQb (no. of copies)
GFC −4.06, −3.34 34.55, 39.54 0.88, 1.00 0.990, 0.996 20-2 × 105
GFD −3.51 −3.02 32.52, 38.26 0.96, 1.07 0.993, 0.999 200-2 × 105
a

Defined as 10(1/−slope)/2.

b

Range of quantification: plasmid concentration range that remained linear to CT values (r2 >0.98) in all 11 standard curves over the 6-month period.