A Fluorimetric Method Based on an Imidazole Compound for Cu²⁺ Determination in Tap Water

Table 1

Analytical performance data for the Cu²⁺ determination method.

Wavelength (nm)	360
Limit of detection (μg/L)	0.28
Limit of quantification (μg/L)	0.84
Linear range (μg/L)	0–15.2
Ligand concentration (M)	2.0 × 10^–7
Ligand volume (mL)	2.0
Total volume (mL)	4.0
Solvent	Acetonitrile : water (1 : 1)
Waiting time	1-2 min
Correlation coefficient (R^2)	0.9842