Miniature, microfluidic devices have been designed and fabricated for the enrichment of haloacetic acids in water. The analytical approach is based on supported liquid membrane (SLM) extraction followed by direct HPLC-UV detection without any derivatization. Channel dimensions and the flow rates affected enrichment factors and extraction efficiencies. Enrichment factors as high as 54 were obtained on a 2 cm × 2 cm extraction module. Large linearity ranges with good linearity, high precisions and detection limit as low as 2 ng/mL were obtained.
All Science Journal Classification (ASJC) codes
- Analytical Chemistry
- Environmental Chemistry
- Supported liquid membrane extraction