Table #: Study design for the adsorption phase.
| Parameters | Soil 1 | Soil 2 | Soil n | |
| Condition of soil (air dried/fresh) |
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| Have these soils been used for other laboratory studies ? (specify which) |
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| Soil (g/replicate) |
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| Equilibrium solution used (name and concentration; eg: 0.01N CaCl2 ) |
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| Control used (with salt solution only) (Yes/No) |
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| Test material concentrations | Nominal application rates |
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| Analytically measured concentrations ( mg a.i./kg soil) |
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| Identity and concentration of co-solvent, if any |
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| Soil:solution ratio |
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| Initial pH of the equilibration solution, if provided |
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| No. of replications | Controls |
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| Treatments |
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| Equilibration | Time |
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| Temperature (EC) |
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| Darkness (Yes/No) |
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| Shaking method |
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| Shaking time |
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| Method of separation of supernatant (eg., centrifugation) |
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| Centrifugation | Speed (rpm or g) |
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| Duration (min) |
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| Method of separation of soil and solution |
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