Research Article
Evaluation of Heavy Metal and Microbial Contamination in Green Tea and Herbal Tea Used for Weight Loss in the Palestinian Market
Table 3
Concentration (ppm) of each heavy metal that was identified.
| | No. | Lead (Pb) | Nickel (Ni) | Chrome (Cr) | Zinc (Zn) | Copper (Cu) | Cadmium (Cd) |
| | 1 | 0.101 ± 0.0103 | Pass | 0.248 ± 0.0270 | Pass | 0.234 ± 0.0340 | Fail | 0.063 ± 0.0088 | Pass | 0.029 ± 0.0210 | Pass | 0.011 ± 0.0109 | Pass | | 2 | 0.110 ± 0.0303 | Pass | 0.355 ± 0.0151 | Pass | 0.251 ± 0.0460 | Fail | 0.074 ± 0.002 | Pass | 0.042 ± 0.0359 | Pass | 0.012 ± 0.0015 | Pass | | 3 | 0.111 ± 0.0101 | Pass | 0.363 ± 0.0010 | Pass | 0.295 ± 0.0247 | Fail | 0.118 ± 0.010 | Pass | 0.534 ± 0.8439 | Pass | 0.012 ± 0.0019 | Pass | | 4 | 0.122 ± 0.0303 | Pass | 0.421 ± 0.0242 | Pass | 0.345 ± 0.0223 | Fail | 0.121 ± 0.0087 | Pass | 0.019 ± 0.0233 | Pass | 0.014 ± 0.0025 | Pass | | 5 | 0.123 ± 0.0030 | Pass | 0.449 ± 0.0283 | Pass | 0.386 ± 0.0280 | Fail | 0.124 ± 0.0171 | Pass | 0.014 ± 0.0219 | Pass | 0.011 ± 0.0008 | Pass | | 6 | 0.112 ± 0.0122 | Pass | 0.455 ± 0.0480 | Pass | 0.424 ± 0.0170 | Fail | 0.156 ± 0.0482 | Pass | 0.018 ± 0.0171 | Pass | 0.018 ± 0.0006 | Pass | | 7 | 0.110 ± 0.0123 | Pass | 0.514 ± 0.0359 | Pass | 0.462 ± 0.003 | Fail | 0.111 ± 0.0011 | Pass | 0.033 ± 0.0241 | Pass | 0.019 ± 0.0023 | Pass | | 8 | 0.134 ± 0.0332 | Pass | 0.487 ± 0.0034 | Pass | 0.473 ± 0.0156 | Fail | 0.117 ± 0.0050 | Pass | 0.033 ± 0.0297 | Pass | 0.028 ± 0.0026 | Pass | | 9 | 0.123 ± 0.0112 | Pass | 0.539 ± 0.0342 | Pass | 0.495 ± 0.0073 | Fail | 0.159 ± 0.0567 | Pass | 0.027 ± 0.0332 | Pass | 0.021 ± 0.0041 | Pass | | 10 | 0.110 ± 0.0101 | Pass | 0.564 ± 0.0270 | Pass | 0.522 ± 0.0055 | Fail | 0.137 ± 0.0134 | Pass | 0.039 ± 0.0364 | Pass | 0.019 ± 0.0021 | Pass | | 11 | 0.385 ± 0.1104 | Pass | 0.555 ± 0.0409 | Pass | 0.505 ± 0.0131 | Fail | 0.134 ± 0.0042 | Pass | 0.034 ± 0.020 | Pass | 0.031 ± 0.0020 | Pass | | 12 | 0.449 ± 0.0397 | Fail | 0.586 ± 0.0138 | Pass | 0.564 ± 0.0143 | Fail | 0.125 ± 0.0057 | Pass | 0.021 ± 0.0203 | Pass | 0.031 ± 0.0020 | Pass | | 13 | 0.381 ± 0.0460 | Pass | 0.571 ± 0.0315 | Pass | 0.539 ± 0.0092 | Fail | 0.128 ± 0.0039 | Pass | 0.051 ± 0.0498 | Pass | 0.039 ± 0.0042 | Pass | | 14 | 0.374 ± 0.0377 | Pass | 0.579 ± 0.0123 | Pass | 0.640 ± 0.0022 | Fail | 0.171 ± 0.0152 | Pass | 0.121 ± 0.0252 | Pass | 0.041 ± 0.0027 | Pass | | 15 | 0.369 ± 0.0234 | Pass | 0.562 ± 0.032 | Pass | 0.560 ± 0.0188 | Fail | 0.132 ± 0.0072 | Pass | 0.037 ± 0.0370 | Pass | 0.045 ± 0.0059 | Pass | | 16 | 0.476 ± 0.0403 | Fail | 0.623 ± 0.0107 | Pass | 0.614 ± 0.049 | Fail | 0.139 ± 0.0113 | Pass | 0.013 ± 0.0140 | Pass | 0.050 ± 0.0031 | Pass | | 17 | 0.484 ± 0.0911 | Fail | 0.595 ± 0.0078 | Pass | 0.646 ± 0.0260 | Fail | 0.126 ± 0.0034 | Pass | 0.020 ± 0.0285 | Pass | 0.050 ± 0.0012 | Pass | | 18 | 0.340 ± 0.0303 | Pass | 0.614 ± 0.0232 | Pass | 0.640 ± 0.0113 | Fail | 0.132 ± 0.0016 | Pass | 0.034 ± 0.0286 | Pass | 0.0473 ± 0.0044 | Pass |
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