A Novel Ratiometric Probe Based on Nitrogen-Doped Carbon Dots and Rhodamine B Isothiocyanate for Detection of Fe³⁺ in Aqueous Solution

Table 1

Determination of Fe³⁺ in lake water and tap water with the proposed method.

Sample	Proposed method (μM)	FAAS (μM)
Sample 1 (lake water)		0.044
Sample 2 (tap water)		0.065