Fig. 6From: Introduction of a Zn-based metal–organic framework @ biomass porous activated carbon as a high-sensitive coating for a stainless steel SPME fiber: application to the simultaneous analysis of nonsteroidal anti-inflammatory drugsChromatograms obtained using Zn-MOF-5@BHPAC nanocomposite-coated SPME fiber for road soli sample (I) and the same sample spiked with 25.0 µg L−1 of selected NSAIDs (II)Back to article page