Description
Return membrane retentate volume and concentration by balance.
Laboratory quantities depend on sample volume, concentration basis, blank correction, geometry and calibration. A dilution, recovery fraction or signal correction evaluates a supplied measurement model without validating the assay, identifying a substance or establishing biological or clinical performance.
Return membrane retentate volume and concentration by balance.
When to use this tool
Use Membrane Recovery Permeate Retentate Balance when checking the stated laboratory bookkeeping, signal, sample or measurement convention.
How to use the tool and how it works
- Enter feedVolume, feedConcentration, permeateVolume, permeateConcentration. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read retentateVolume, retentateConcentration. Use the output convention below.
Return membrane retentate volume and concentration by balance. Require feedVolume > permeateVolume >= 0, concentrations >= 0 and permeate amount <= feed amount; retained amount divides by feed-permeate volume.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| feedVolume | Feed Volume | Required. Finite number. |
| feedConcentration | Feed Concentration | Required. Finite number; minimum 0. |
| permeateVolume | Permeate Volume | Required. Finite number; minimum 0. |
| permeateConcentration | Permeate Concentration | Required. Finite number; minimum 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| retentateVolume | Retentate Volume | Required. Finite number. |
| retentateConcentration | Retentate Concentration | Required. Finite number. |
{
"input": {
"feedVolume": 100,
"feedConcentration": 5,
"permeateVolume": 40,
"permeateConcentration": 2
},
"output": {
"retentateVolume": 60,
"retentateConcentration": 7
}
}Limitations and assumptions
- This assumes compatible concentration units and no unmeasured losses or adsorption; actual membrane performance is not established.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Use verified sample records, calibrated equipment and an appropriate validated measurement method; assess uncertainty and practical laboratory conditions independently.
References
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