Abstract
A new microfluidic extraction method using a gas-liquid-liquid double emulsion with ultra-thin solvent film as the working system was developed, overcoming the defect of low extraction efficiency at extreme phase ratios (R > 10) by significantly reducing the mass transfer distance. Interesting bubble coalescence in the emulsion generation was reported and laws of bubble diameter (0.73-1.08 mm) and film thickness (0.35-4.06 μm) were proposed. Simulated by a Sudan IV extraction process, the gas-liquid-liquid extraction showed 16-28.3 times working efficiency compared to liquid-liquid extraction, appropriate for application requiring fast analysis and detection.
| Original language | English |
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| Pages (from-to) | 6470-6474 |
| Number of pages | 5 |
| Journal | RSC Advances |
| Volume | 5 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - 2015 |
| Externally published | Yes |