Analysis of Phenolic Compounds in Water

Chemists from Normal University and Wuhan University (both Wuhan, China) used an improved liquid-liquid-liquid microextraction method in the analysis of four phenolic compounds in water.

Chemists from Normal University and Wuhan University (both Wuhan, China) used an improved liquid-liquid-liquid microextraction method in the analysis of four phenolic compounds in water. They used a vial insert as the acceptor phase container. The small diameter of the bottom of the vial insert caused a larger contact area between the acceptor phase and the vial insert and reportedly enabled increased the stability of the microdrop. Because more acceptor phase could be held in the improved method, the sensitivity was also increased. The researchers chose aqueous ammonia as the acceptor phase and toluene as the organic phase.