Table 6 Recovery test using optimized procedure of metals in leaves of Cannabis sativa L. sample
From: Levels of selected metals in leaves of Cannabis sativa L. cultivated in Ethiopia
Metal | Amount spiked (mg in 0.5 g) | Amount recovered (mg in 0.5 g) | Percent recovery (% R) |
|---|---|---|---|
Ca | 0.0014 | 0.0013 | 92.9 |
Cr | 0.0004 | 0.0004 | 100 |
Ni | 0.0074 | 0.0072 | 97.3 |
Cu | 0.0122 | 0.0125 | 102.5 |
Zn | 0.0024 | 0.0022 | 91.7 |
Cd | 0.0008 | 0.0007 | 87.5 |
Pb | 0.0021 | 0.0019 | 90.5 |