Solid Phase Microextraction and Related Techniques for Drugs in Biological Samples
Figure 4
Schematic of (a) the formation of polydopamine layer and (b) modification of PEEK tube and preparation of poly(AA-EGDMA) monolith and Scanning electron micrograph of (A) polydopamine layer on the inner wall of PEEK tube, (B) poly(AA-EGDMA) monolith, and (C) interface of inner wall of PEEK tube and polymer monolith [79].
