Table 4.

Metal concentration in Slovak wine (mean ± SD, mg/L, n = 56) depending on the type of wine, alcohol content, and age of wine

Metal	Type of wine			Alcohol content (%)		Age of wine (years)
	White (n = 37)	Red (n = 7)	Rose (n = 12)	≥ 12 (n = 40)	< 12 (n = 16)	≤ 2 (n = 42)	> 2 (n = 14)
Ca	2.72 ± 1.58	2.29 ± 1.32	2.82 ± 0.99	2.49 ± 1.12	3.02 ± 2.07	2.73 ± 1.58	2.37 ± 1.00
Cd	0.06 ± 0.04	0.09 ± 0.03	0.07 ± 0.04	0.07 ± 0.04	0.06 ± 0.04	0.07 ± 0.04	0.06 ± 0.05
Cu	0.03 ± 0.02	0.03 ± 0.01	0.02 ± 0.02	0.03 ± 0.02	0.03 ± 0.03	0.03 ± 0.02	0.03 ± 0.02
Fe	0.32 ± 0.15	0.40 ± 0.14	0.41 ± 0.29	0.35 ± 0.17	0.35 ± 0.16	0.34 ± 0.17	0.38 ± 0.15
Hg	0.001 ± 0.001	0.001 ± 0.001	0.001 ± 0.001	0.001 ± 0.001	0.001 ± 0.001	0.001 ± 0.001	0.001 ± 0.001
Mg	0.74 ± 0.98	0.50 ± 0.36	0.49 ± 0.58	0.56 ± 0.45	0.92 ± 1.40	0.74 ± 0.93	0.42 ± 0.41
Ni	0.04 ± 0.05	0.06 ± 0.04	0.03 ± 0.05	0.04 ± 0.04	0.05 ± 0.06	0.05 ± 0.05	0.02 ± 0.03
Pb	0.09 ± 0.06	0.06 ± 0.08	0.08 ± 0.05	0.08 ± 0.06	0.09 ± 0.06	0.08 ± 0.07	0.08 ± 0.06
Zn	0.20 ± 0.24	0.17 ± 0.09	0.18 ± 0.07	0.21 ± 0.22	0.15 ± 0.11	0.16 ± 0.09	0.29 ± 0.35