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Lead (Pb) and arsenic (As) mixture titration experimental design.
| Experiment | Mixture 1 | Mixture 2 | Mixture 3 |
|---|---|---|---|
| Experiment 1 | Pb LC25 + As LC25 | Pb LC25 + As LC50 | Pb LC25 + As LC75 |
| Experiment 2 | Pb LC50 + As LC25 | Pb LC50 + As LC50 | Pb LC50 + As LC75 |
| Experiment 3 | Pb LC75 + As LC25 | Pb LC75 + As LC50 | Pb LC75 + As LC75 |
