ArticleJournal of separation science2026
Fabrication of Lead-based Metal-Organic Frameworks Using Recovered Lead for Solid-Phase Microextraction of p-Phenylenediamine Antioxidants.
Article in Journal of separation science, 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 recycling of waste lead-acid batteries and the sensitive detection of trace p-phenylenediamine (PPD) antioxidants represent two pressing challenges in resource recovery and environmental safety. Herein, an integrated solution was proposed by synthesizing a novel lead-based metal-organic framework (WLP-Pb-MOF) from waste lead paste (WLP) as a sustainable metal source. The material served as a coating for a solid-phase microextraction (SPME) fiber. When coupled with gas chromatography-mass spectrometry, it enabled a highly sensitive method for determining three PPDs in water samples. The unique slit-shaped pore architecture and hydrophobic surface of WLP-Pb-MOF facilitated efficient enrichment through synergistic interactions, including size-sieving, hydrophobic partitioning, π-π stacking, and hydrogen bonding. This synergy resulted in extraction efficiencies significantly outperforming commercial SPME fibers. The method demonstrated good linearity from 5 to 2000 ng L
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