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- Title
Analysis of heterocyclic aromatic amines using selective extraction by magnetic molecularly imprinted polymers coupled with liquid chromatography -- Mass spectrometry.
- Authors
Shih-Ci Jhu; Jing-Ying Wang; Hsueh-Ting Wang; Sung-Fang Chen
- Abstract
Heterocyclic aromatic amines (HCAs) are highly carcinogenic and mutagenic chemicals. This study reports on the development of magnetic molecularly imprinted polymers (MMIPs) for the purification and quantification of HCAs. A novel magnetic molecularly imprinted polymer was successfully prepared using a surface molecular imprinting method using functionalized Fe particles as the magnetic cores. 2-Amino-3-methylimidazo[4,5-f]quinoline (IQ) was used as a molecular template; methacrylic acid (MAA), ethylene glycol dimethyl acrylate (EGDMA), 2, 2'-Azobis (2-methyl-propionitrile) were used as the functional monomer, crosslinker, and initiator, respectively. The use of the template/ functional monomer/crosslinking agent at a ratio of 1:4:20 resulted in a product with better adsorption properties (3.24 mg/g). The HCAs were successfully detected and quantified in processed meat samples by MISPE and LC-MS/MS. Under the final optimized detection conditions, the proposed method offered good linearity (R > 0.995) for the five HCAs with an acceptable level of precision, and an LOQ of 0.05 ng/g was successfully achieved.
- Subjects
TAIWAN; HYDROCARBON analysis; AMINE analysis; HETEROCYCLIC compounds; LIQUID chromatography; ETHYLENE glycols; SOLID phase extraction; POLYMERS; MASS spectrometry; ADSORPTION (Chemistry); MOLECULAR structure; ANALYTICAL chemistry; POLYMETHACRYLIC acids
- Publication
Journal of Food & Drug Analysis, 2021, Vol 29, Issue 4, p726
- ISSN
1021-9498
- Publication type
Article
- DOI
10.38212/2224-6614.3384