Pb处理 | I | II | 均值 | ±% |
0.04 mg/L | 0.189 ± 0.021 | 0.214 ± 0.030 | 0.202 | 778.3** |
0.05 mg/L | 0.256 ± 0.019 | 0.269 ± 0.018 | 0.263 | 1043.5** |
清水对照 | 0.022 ± 0.003 | 0.024 ± 0.002 | 0.023 |
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