Journal
FOOD CHEMISTRY
Volume 204, Issue -, Pages 56-61Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2016.02.102
Keywords
Triacontyl group; Carbamate; Solid phase extraction; Flavonoids; Honey sample
Funding
- National Natural Science Foundation of China [21475142]
- Funds for Distinguished Young Scientists of Gansu [1506RJDA281]
- Lanzhou Institute of Chemical Physics, CAS
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In this study, carbamate-embedded triacontyl-modified silica (Sil-CBM-C30) is successfully prepared and used as an efficient sorbent for solid-phase extraction. The extraction performance of the resultant sorbent is evaluated with five flavonoids including myricetin, quercetin, luteolin, kaempferol and isorhamnetin. Main parameters, which affect extraction efficiencies, are carefully investigated and optimized. Comparative experiments between Sil-CBM-C30 and commercial C18 sorbents indicate that the extraction efficiencies of the former one surpass the latter one. The modification of carbamate-embedded triacontyl group on surface of silica causes analytes extracted by hydrophobic, hydrogen bonding and pi-pi interactions. Under optimal conditions, good linearities and satisfied LODs and LOQs are achieved. The SPE-HPLC-DAD method is successfully developed and applied for the honey sample analysis. (C) 2016 Elsevier Ltd. All rights reserved.
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