scholarly journals Facile construction of magnetic core–shell covalent organic frameworks as efficient solid-phase extraction adsorbents for highly sensitive determination of sulfonamide residues against complex food sample matrices

RSC Advances ◽  
2019 ◽  
Vol 9 (25) ◽  
pp. 14247-14253 ◽  
Author(s):  
Jing-Min Liu ◽  
Shi-Wen Lv ◽  
Xin-Yue Yuan ◽  
Hui-Lin Liu ◽  
Shuo Wang

Robust and efficient solid-phase extraction adsorbents based on magnetic core–shell covalent organic frameworks gave excellent analytical performance for determination of sulfonamide residues in food samples.

2018 ◽  
Vol 42 (8) ◽  
pp. 5806-5813 ◽  
Author(s):  
Rohullah Kashanaki ◽  
Homeira Ebrahimzadeh ◽  
Morteza Moradi

D-μ-SPE-SUPRAS-ME followed by GFAAS was successfully used for preconcentration and determination of copper in real samples.


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