Table 4
LOD and LOQ of the hazardous metals according to different migrant solution at 100°C for 30 min (μg/kg)

Parameter	Distilled water		Citric acid solution (0.5%)		NaCl solution (1%)
	LOD1)	LOQ2)	LOD	LOQ	LOD	LOQ
	Pb	2.48	8.81	1.02	3.36	2.84	9.37
As	2.00	6.59	1.66	5.47	2.46	8.11
Cd	0.45	1.48	0.47	1.56	0.53	1.75
Ni	0.57	1.89	0.28	0.91	1.42	4.68
Al	3.95	13.02	1.60	5.30	1.80	5.95

Limit of detection=3×σ/m (σ, standard deviation of area; m, slope of calibration curve).
Limit of quantification=3.3×LOD.