Table 1.

LLOD, ULOQ, and Pearson coefficients (R²-values) for calibration curves from camera-phone and UV-Vis analysis using amygdalin as a CNG standard.

Method/µg CN− eq.	ULOQ	LLOQ	R 2
UV-Vis	50	0.14	0.9971
Camera-phone	50	1.59	0.9889