Description
Return purification loss after sample withdrawal.
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 purification loss after sample withdrawal.
When to use this tool
Use Purification Loss Sample Withdrawal Term when checking the stated laboratory bookkeeping, signal, sample or measurement convention.
How to use the tool and how it works
- Enter openingMass, recoveredMass, sampleWithdrawn. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read unaccountedLoss, recoveryExcludingSample. Use the output convention below.
Return purification loss after sample withdrawal. Require openingMass > sampleWithdrawn >= 0 and recoveredMass >= 0; unaccountedLoss = opening-recovered-withdrawn, recoveryExcludingSample = recovered/(opening-withdrawn).1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| openingMass | Opening Mass | Required. Finite number. |
| recoveredMass | Recovered Mass | Required. Finite number; minimum 0. |
| sampleWithdrawn | Sample Withdrawn | Required. Finite number; minimum 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| unaccountedLoss | Opening minus recovered and sampled mass; negative is retained when recovery exceeds the balance. | Required. Finite number. |
| recoveryExcludingSample | Recovery Excluding Sample | Required. Finite number. |
{
"input": {
"openingMass": 100,
"recoveredMass": 70,
"sampleWithdrawn": 10
},
"output": {
"unaccountedLoss": 20,
"recoveryExcludingSample": 0.7777777777777778
}
}Limitations and assumptions
- Negative loss or recovery above one is retained; actual balance closure, sample comparability and process efficiency are not verified.
- 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
Similar or alternative tools
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