| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Medicago sativa | Shoot | -- | -- | * | |
| Medicago sativa | Plant | -- | -- | * | |
| Lycopersicon esculentum | Leaf | -- | -- | * | |
| Avena sativa | Sprout Seedling | -- | -- | * | |
| Lycium chinense | Leaf | -- | 0.69 | Hansel, R., Keller, K., Rimpler, H., and Schneider, G. eds. 1992. Hager's Handbuch der Pharmazeutischen Praxis, Drogen (A-D), 1209 pp., 1993 (E-O), 970 pp., 1994 (P-Z), 1196 pp. Springer-Verlag, Berlin. | |
| Glycine max | Seed | -- | -- | * | |
| Oryza sativa | Sprout Seedling | -- | -- | * | |
| Nicotiana tabacum | Leaf | -- | -- | List, P.H. and Horhammer, L., Hager's Handbuch der Pharmazeutischen Praxis, Vols. 2-6, Springer-Verlag, Berlin, 1969-1979. | |
| Zea mays | Leaf | -- | -- | * |