Research Article
Evaluation of Heavy Metal and Microbial Contamination in Green Tea and Herbal Tea Used for Weight Loss in the Palestinian Market
Table 2
Calibration of concentration for each heavy metal.
| | Metals | Ni (ppm) | Cu (ppm) | Zn (ppm) | Cd (ppm) | Pb (ppm) | Cr (ppm) |
| | Standard #1 | 0.05 | 0.5 | 0.5 | 0.5 | 1 | 0.5 | | Standard #2 | 0.1 | 1 | 1 | 1 | 2.5 | 1 | | Standard #3 | 0.5 | 2 | 2 | 2 | 5 | 2 | | Standard #4 | 1 | 3 | 3 | 3 | 10 | 3 |
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