AI Article Synopsis
- Food-derived agricultural chemical residues (FACRs) can accumulate in organisms and negatively impact their nervous, endocrine, and reproductive systems, highlighting a significant health concern.
- The study presents a method combining ultrasound-assisted extraction with QuEChERS and UPLC-Ms/Ms for analyzing trace FACRs in waste wool fibers, using formic acid-methanol as the solvent.
- The method demonstrated effective detection limits, good linearity for 13 target FACRs, and recovery rates between 78% and 112.6%, indicating its reliability for future applications in detecting FACRs.
Article Abstract
Food-derived agricultural chemical residues (FACRs) accumulate gradually in organisms and can damage their nervous system, endocrine system and reproductive system, posing significant harm. Currently, there is little literature on the detection of FACRs in waste wool fibers. In this paper, an ultrasound-assisted extraction-QuEChERS (Quick, Easy, Cheap, Effective, Rugged, Safe) cleanup-UPLC-Ms/Ms method was applied for the qualitative analysis and quantitative determination of trace FACRs in waste wool fibers with 0.2% formic acid-methanol as extraction solvent and multi-selective ion scanning. Using the external standard method, it was shown that the 13 target FACRs showed good linearity in the mass concentration range of 0.1-50 μg/kg. The limits of detection were 1.0- 10.0 μg/kg and the limits of quantification were 4.0-40.0 μg/kg. The recoveries of the 13 target FACRs ranged from 78 to 112.6% at the 5-, 10- and 20-fold detection limit spiked levels, and the intra- or inter-day relative standard deviations were 2.05-6.98% or 1.98-6.99%, respectively. This method satisfied the detection requirements and can be used in applications.
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