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Mixing flow & solvent dilution

Convert an aqueous:organic flow ratio and total flow into stream rates, batch volumes and collection time.

Your inputs

For aqueous:organic = 3:1, enter 3. This convention is fixed and shown in the results.
Assumes no ethanol in the aqueous stream.
Must be at least the collected batch volume; diluent is assumed ethanol-free.

Results

Enter your inputs and select Calculate.

Calculations run in your browser. Exports contain your inputs and results.

Calculation basis

Qorganic = Qtotal/(FRR+1); Qaqueous = Qtotal − Qorganic. Collection time = collected volume / total flow. Nominal ethanol fractions assume additive volumes. Does not include dead volume, startup waste, solvent removal or predict particle properties.

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