. 2021 Jul 5;9(9):5028–5035. doi: 10.1002/fsn3.2456

TABLE 1.

Analyzed absorbance data for Figure 1d spectra

Type of solution	UV‐VIS absorbance data			Absorbance values of each analyte
	A_{at 325 nm}	A_{at 274 nm}	A_{at 264}	Caffeine	Trigonelline	Chlorogenic acid
	A_{at 325 nm}	A_{at 274 nm}	A_{at 264}	A_{at 274}–0.37A₃₂₅	A_{stock solution at 264 nm}–A_{sum at 264 nm}	A_{at 325}
Stock solution	0.841	0.457	0.338	0.395–0.37 (0.815) = 0.10975	0.338–0.265 = 0.0729	0.815
1st cycle extract	0.712	0.342	0.221
2nd cycle extract	0.103	0.053	0.0441
Sum of extracts (1stand 2ndext)	0.815	0.395	0.2651