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Self‐Assembling Bifunctional Hydrophilic Magnetic Nanomaterials for Highly Efficient Enrichment of Parabens in Beverages Sample
Author(s) -
Gao Yiqian,
Wang Baichun,
Yan Yinghua
Publication year - 2019
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201902055
Subject(s) - preservative , ionic liquid , detection limit , chemistry , bifunctional , mesoporous silica , chromatography , imidazole , nanomaterials , nanotechnology , mesoporous material , materials science , food science , organic chemistry , catalysis
Preservatives affect human endocrine systems and pose a potential threat to the environment, so developing a fast, low‐cost means to detect parabens is critical. In this work, a hydrophilic magnetic ball (Fe 3 O 4 @mSiO 2 @PDA‐IL@C18) is prepared via functionalized position control strategy. The imidazole‐based ionic liquid and mesoporous silica are outer bifunctional groups, which provide active sites for the extraction of preservatives by the π‐π interaction. Fe 3 O 4 @mSiO 2 @PDA‐IL@C18 was utilized to the selective enrichment of parabens with good linear range (0.05‐300 ng/mL), excellent recovery (94%‐105%) and precision (RSDs lower than 5.2%), and low detection limit (0.05 ng/mL). In the actual sample test, the prepared Fe 3 O 4 @mSiO 2 @PDA‐IL@C18 could specifically detect parabens from green tea and cola samples. The results displayed that we provided an efficient and simple method for the detection of preservatives in food.