Amperometric Detection of Bacillus anthracis Spores: A Portable, Low-Cost Approach to the ELISA

Table 1

Assay parameter comparison.

Assay	Time-to-results (hrs)	Limit of detection; (cfu/mL)	Limit of quantification; (cfu/mL)	Dynamic range; (cfu/mL)
PHAD	1.25	10^4	5×10^4	10^3--5×10^4
LFD	0.25	10^6	NA	NA
ELISA	6.5*	10^4	10^4	10^4–10^5

∗Assay time does not include initial overnight ELISA-plate coating step.
NA: not applicable.