. 2020 Mar 3;5(12):6763–6772. doi: 10.1021/acsomega.0c00098

Table 2. Detection of Fe³⁺ in Healthy Human Serum by PEG-GQDs.

sample	added (μmol/L)	found (μmol/L)	recovery (%)	RSD (%)
healthy	0	17.45
human	2	19.59	107.07
serum	2	19.38	96.40	4.34
	2	19.52	103.59

Table 2. Detection of Fe3+ in Healthy Human Serum by PEG-GQDs.