| Batch 1 | Batch 2 | t test | ||||||
| Batch No. | Pb | Cd | Batch No. | Pb | Cd | t | df | p |
| Lbg1 | 4.10 | 0 | Lbg11 | 0.93 | 0 |
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| Lbg2 | 7.85 | 0 | Lbg12 | 4.14 | 0 |
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| Lbg3 | 14.84 | 0 | Lbg13 | 6.28 | 0 |
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| Lbg4 | 20.87 | 0 | Lbg14 | 9.18 | 0 |
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| Lbg5 | 7.85 | 0 | Lbg15 | 4.23 | 0 |
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| Lbg6 | 14.84 | 0 | Lbg16 | 6.00 | 0 |
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| Lbg7 | 20.87 | 0 | Lbg17 | 6.28 | 0 |
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| Lbg8 | 14.84 | 0 | Lbg18 | 9.06 | 0 |
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| Lbg9 | 4.10 | 0 | Lbg19 | 0.93 | 0 |
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| Lbg10 | 7.85 | 0 | Lbg20 | 6.01 | 0 |
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| Min. | 4.10 | 0 | Min. | 0.93 | 0 |
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| Max. | 20.87 | 0 | Max. | 9.18 | 0 |
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| Mean ± SD | 11.80 ± 6.30 | 0 | Mean ± SD | 5.30 ± 2.84 | 0 | 2.971 | 18 | 0.008 |
| EPA | 840 | 85 | EPA | 840 | 85 |
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