Determination of aliphatic amines in food by on-fiber derivatization solid-phase microextraction with a novel zeolitic imidazolate framework 8-coated stainless steel fiber

Metal–Organic Frameworks for Food Safety

“…Recently, MOF-based SPME has attracted more attention in food safety due to excellent performance in the enrichment and cleanup of analytes. Huang et al used ZIF-8 as a SPME coating and developed in situ derivatization on SPME for the analysis of nonvolatile aliphatic diamines in fish . With the aid of ZIF-8 based SPME enrichment, the LODs for aliphatic diamines were below 33.2 μg L –1 and exhibited satisfactory recoveries (78.6–104%).…”

“…Huang et al used ZIF-8 as a SPME coating and developed in situ derivatization on SPME for the analysis of nonvolatile aliphatic diamines in fish. 178 stable SPME arrow with ZIF-8/PVC coating for the extraction and concentration of trimethylamine (TMA) and triethylamine (TEA) in salmon and mushroom samples prior to GC-MS detection. 179 The reproducibility of extraction with ZIF-8/ PVC SPME was tested, and there was minimal degradation of performance (RSD < 12.5%) over at least 130 cycles.…”

Advances in Solid Phase Microextraction and Perspective on Future Directions

“…ZIF-90 and furfuryl alcohol were used as precursors to make nanoporous carbon. 119 The ZIF-90-NPC coating showed high adsorption affinity, satisfactory recoveries, and reusability up to 100 cycles. Aiming to simplify the linkage of ZIFs on the surface of substrates, researchers used polydopamine as a coating on the inner surface of PEEK tubing.…”

“…Recently, ZIF-8 coated SPME fibers loaded with the derivatization agent isobutylchloroformate were employed in DI mode for determination of nonvolatile aliphatic amines from fish samples. 119 The loading of the derivatization agent on the prepared fibers prohibited their hydrolysis, and facilitated simultaneous derivatization and extraction. In comparison with commercial PDMS fibers, the ZIF-8 fibers yielded better performance, good stability, and adequate sensitivity.…”

Emerging materials for sample preparation

“…Direct immobilization of already preformed ZIF‐8 crystals has been also implemented for the preparation of SPME devices. ZIF‐8 crystals were immobilized in an acid etched stainless steel wire, and the resulting SPME device was applied to the extraction of harmful aliphatic diamines from fish samples before GC–MS analysis . Using poly(vinyl)chloride as adhesive, ZIF‐8 crystals were also immobilized onto a stainless steel support .…”