Target-Induced Aggregation of Gold Nanoparticles for Colorimetric Detection of Bisphenol A

Table 1

Determination of BPA in the receipt.

Determined BPA (μM)^a	Amount of BPA added (μM)	Measured BPA^b (μM)	SD^c	CV^d (%)	Recovery^e (%)
2.51	5.00	5.49	0.735	13.4	110
	25.0	27.9	0.067	0.241	112

^aThis concentration is determined by diluting the receipt solution (100 mL; See Materials and Methods) 20 times. ^bMean of three measurements. ^cStandard deviation (SD) of three measurements. ^dCoefficient of variation . ^e.