Table 2.

Precision assessment of VON determination using CQDs/CPE (intraday and interday).

	Conc. (nM)	% Recovery	Mean % recovery	SD	% RSD
Intraday precision	20	100.45	99.73	0.6	0.6
		99.76
		98.98
	50	99.23	99.79	0.54	0.54
		100.52
		99.61
	80	98.86	99.58	0.64	0.64
		99.45
		100.42
Inter-day precision	20	101.03	100.35	0.77	0.77
		99.28
		100.74
	50	98.63	99.3	0.48	0.48
		99.71
		99.57
	80	100.72	99.94	0.55	0.55
		99.62
		99.49