Table 4.
Total Content of Heavy Metals (mg/kg dry weight) in Herbal Teas Collected in Šabac Markets and Determined by AAS (Mean Values ± SD)
| No. | Herbal tea | Concentration (mg/kg) | ||||
|---|---|---|---|---|---|---|
| Cu | Fe | Ni | Mn | Zn | ||
| 1 | Matricariae flos | 11.1 ± 0.8 | 166.5 ± 2.3 | 5.0 ± 0.3 | 43.5 ± 1.4 | 26.5 ± 1.2 |
| 2 | Thymi herba | 13.4 ± 1.0 | 755.5 ± 2.5 | 8.5 ± 0.8 | 54.5 ± 1.5 | 29.5 ± 1.3 |
| 3 | Menthae piperitae folium | 11.0 ± 0.8 | 366.5 ± 1.9 | 7.5 ± 0.6 | 70.7 ± 1.7 | 16.5 ± 1.2 |
| 4 | Uvae ursi folium | 5.9 ± 0.4 | 489.0 ± 1.7 | 6.5 ± 0.7 | 20.5 ± 1.2 | 34.5 ± 1.8 |
| 5 | Betulae folium | 13.3 ± 0.7 | 193.5 ± 2.1 | 2.5 ± 0.1 | 561.0 ± 1.9 | 242.5 ± 1.4 |
| 6 | Althaeae radix | 22.2 ± 0.9 | 144.5 ± 0.8 | 5.5 ± 0.4 | 19.5 ± 0.9 | 20.0 ± 1.1 |
| 7 | Gentianae radix | 9.7 ± 0.6 | 269.0 ± 1.5 | 10.0 ± 1.1 | 111.0 ± 1.1 | 39.0 ± 0.9 |
| 8 | Glycyrrhizae radix | 8.9 ± 0.6 | 411.0 ± 1.2 | 2.7 ± 0.2 | 19.0 ± 5.8 | 11.5 ± 0.6 |
| 9 | Frangulae cortex | 2.9 ± 0.1 | 118.0 ± 1.1 | 3.3 ± 0.2 | 361.0 ± 1.5 | 8.0 ± 0.6 |
| 10 | Quercus cortex | 8.2 ± 0.4 | 238.0 ± 0.7 | 6.5 ± 0.5 | 150.0 ± 1.5 | 6.5 ± 0.4 |