ArticleAnalytical and bioanalytical chemistry2026
Synthesis of hydroxyl-rich covalent organic framework-coated stainless steel fiber for efficient solid-phase microextraction of psychiatric drugs from water and milk samples.
Article in Analytical and bioanalytical chemistry, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
The increasing misuse of psychiatric drugs has led to their emergence as environmental contaminants in water and food matrices, raising public health concerns. In this study, a hydroxyl-rich covalent organic framework (Py-DHBD-COF) was solvothermally synthesized and coated onto a stainless steel fiber for use in direct-immersion solid-phase microextraction (DI-SPME). The fabricated fiber was employed to extract psychiatric drugs from environmental water and pretreated milk extracts, followed by analysis using high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS). The hydroxyl-rich structure of the Py-DHBD-COF coating can provide hydrogen-bonding, hydrophobic interactions, and π-π interactions with the target analytes, resulting in high extraction efficiency. Key parameters affecting extraction performance, including extraction time, volume, pH, and desorption conditions, were systematically optimized. Under optimal conditions, the method exhibited good linearity (R
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