About Extraction Efficiency
Extraction efficiency tells how much target material moves from a sample into the chosen extract. It is common in chemistry, food testing, water analysis, oils, plant extracts, and many recovery studies. A high value means the method collects most of the available material. A low value means the solvent, time, mixing, pH, temperature, or phase ratio may need review.
Why This Calculation Matters
This calculator supports two common views. The direct recovery method compares corrected recovered mass with starting mass. It is useful after weighing, assay reading, or concentration measurement. The partition method estimates theoretical recovery from a distribution coefficient, aqueous volume, solvent volume, and number of repeated extractions. It is useful during method design, solvent comparison, or scale planning.
Key Inputs
Initial amount is the known mass or amount before extraction. Recovered amount is the measured material found in the extract. Blank correction removes background signal. Purity correction adjusts for impurities in the recovered fraction. Loss correction covers handling loss, filtration loss, evaporation loss, or transfer loss. For partition extraction, the distribution coefficient describes how strongly the target prefers the solvent phase over the original phase.
Reading The Result
Efficiency percentage shows the corrected extracted share. Corrected recovered amount shows usable yield after corrections. Remaining amount estimates what stays in the source phase. The target comparison helps judge whether the method passes a chosen recovery goal. When repeated extractions are used, the remaining fraction usually falls after each extraction.
Practical Notes
Use consistent units for all amount fields. Use the same volume unit for both phases. Do not mix milligrams with grams unless you convert first. Enter realistic purity and loss percentages. Very high efficiency may indicate a wrong blank, calibration error, unit mismatch, or overestimated purity. Very low efficiency may show poor phase contact or unsuitable solvent. Keep notes on sample preparation, shaking speed, settling time, and instrument response. These details make troubleshooting easier and more reliable.
Method Improvement
Improve extraction by increasing contact area, choosing a better solvent, adjusting pH, extending mixing time, or repeating extraction with fresh solvent. Smaller solvent portions used several times can outperform one large portion in partition systems. Always confirm results with replicate tests, calibration standards, and quality controls.