Table 1.

Sensitivity of IC-PCR assays for the dilution series of E. coli B7A DNA.

Array	Copies/reaction	Number of positive	Mean Ct values	Amount copy number	RSD (%)	Bias (%)
607710	100	15/15	30.28	99.05	1.43	−0.95
	10	15/15	33.33	12.13	12.99	21.30
	5	8/15	/	/	/	/
	2	0/15	NA	NA	NA	NA
	100	15/15	31.16	94.24	7.40	−5.76
1818096	10	15/15	34.29	11.28	19.27	12.80
	5	3/15	/	/	/	/
	2	0/15	NA	NA	NA	NA
	100	15/15	30.73	87.57	5.85	12.43
3026955	10	15/15	33.82	11.91	3.29	11.91
	5	15/15	34.73	6.62	9.91	32.37
	2	0/15	NA	NA	NA	NA
	100	15/15	29.45	109.72	3.93	9.72
4120753	10	15/15	32.84	11.37	12.48	13.70
	5	15/15	34.07	4.99	23.46	−0.20
	2	2/15	/	/	/	/

“/” Means no enough data for further analysis, “NA” means no amplification.