Determination of Azole Fungicide Residues in Fresh Juice by Magnetic Solid Phase Extraction Based on Fe3O4@ZnAl-LDH@MIL-53(Al) Sorbent in Combination with High-Performance Liquid Chromatograph.
Shu-Tong YangYi-Wen CaoZi-Ying ZengZheng GangMin ChenBing-Yan DuMiao-Miao SuZhong-Hua YangZhu-Hua TangYun-Liu ZengPublished in: Journal of chromatographic science (2024)
In this work, a magnetic adsorption material based on metal-organic framework (Fe3O4@ZnAl-LDH@MIL-53(Al)) was synthesized and used as an adsorbent in the process of magnetic solid phase extraction. Then, a high-performance liquid chromatograph was used to quantitatively detect triazole fungicides in samples. In order to verify the successful preparation of the material, a series of characterization analyses were carried out. Besides, the key parameters that may affect the extraction efficiency have been optimized, and under optimal conditions the three triazole fungicides showed good linearity in the range of 10-1000 μg/L (R2 ≥ 0.9796); Limit of detections were ranged from 0.013 to 0.030 μg/mL. Finally, the established method was applied to the detection of triazole fungicides in four fresh juice samples. The results showed that the target analyte was not detected in all the test samples. By detecting the recoveries (73.3-104.3%) and coefficient variation (RSD ≤ 6.8%) of triazole fungicides in fortified samples, it proved that this established method meets the requirements of pesticide residue analysis and showed excellent application potential.
Keyphrases
- solid phase extraction
- molecularly imprinted
- high performance liquid chromatography
- liquid chromatography tandem mass spectrometry
- metal organic framework
- gas chromatography mass spectrometry
- simultaneous determination
- tandem mass spectrometry
- liquid chromatography
- ultra high performance liquid chromatography
- gas chromatography
- mass spectrometry
- ionic liquid
- risk assessment
- climate change
- ms ms
- quantum dots
- label free
- sensitive detection
- contrast enhanced