Graphene-magnetite as adsorbent for magnetic solid phase extraction of 4-hydroxybenzoic acid and 3,4-dihydroxybenzoic acid in stingless bee honey

•Synthesis of new graphene-magnetite solid phase extraction sorbent (G-Fe3O4-MSPE).•Fast and green extraction method for two phenolic acids in stingless bee honey.•Efficient extraction of phenolic acids with low detection limits (0.08–0.14 µg/g).•A method with good relative recoveries (72.6–110.6%)...

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Vydáno v:Food chemistry Ročník 265; s. 165 - 172
Hlavní autoři: Musa, Marina, Wan Ibrahim, Wan Aini, Mohd Marsin, Faridah, Abdul Keyon, Aemi S., Rashidi Nodeh, Hamid
Médium: Journal Article
Jazyk:angličtina
Vydáno: England Elsevier Ltd 01.11.2018
Témata:
4-hydroxybenzoic acid
adsorbents
desorption
Graphene-magnetite
high performance liquid chromatography
Magnetic solid phase extraction
magnetism
methanol
Phenolic acids
sodium chloride
solid phase extraction
solvents
sonication
Stingless bee honey
stingless bees
MNPs
Graphene-magnetite
LVSEM
3,4-DHB
4-HB
XRD
Magnetic solid phase extraction
Stingless bee honey
Phenolic acids
TGA
BET
Fe3O4
VSM
FTIR
FeCl36H2O
NaCl
HPLC-UV/Vis
TEM
G-Fe3O4
NH4OH
MSPE
ISSN:0308-8146, 1873-7072, 1873-7072
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Shrnutí:•Synthesis of new graphene-magnetite solid phase extraction sorbent (G-Fe3O4-MSPE).•Fast and green extraction method for two phenolic acids in stingless bee honey.•Efficient extraction of phenolic acids with low detection limits (0.08–0.14 µg/g).•A method with good relative recoveries (72.6–110.6%) and precision values. Graphene-magnetite composite (G-Fe3O4) was successfully synthesized and applied as adsorbent for magnetic solid phase extraction (MSPE) of two phenolic acids namely 4-hydroxybenzoic acid (4-HB) and 3,4-dihydroxybenzoic acid (3,4-DHB) from stingless bee honey prior to analysis using high performance liquid chromatography with ultraviolet–visible detection (HPLC-UV/Vis). Several MSPE parameters affecting extraction of these two acids were optimized. Optimum MSPE conditions were 50 mg of G-Fe3O4 adsorbent, 5 min extraction time at 1600 rpm, 30 mL sample volume, sample solution pH 0.5, 200 µL methanol as desorption solvent (5 min sonication assisted) and 5% w/v NaCl. The LODs (3 S/N) calculated for 4-HB and 3,4-DHB were 0.08 and 0.14 µg/g, respectively. Good relative recoveries (72.6–110.6%) and reproducibility values (RSD < 8.5%, n = 9) were obtained. The developed G-Fe3O4 MSPE method offered is simple, easy, environmental friendly and efficient for extraction of the two phenolic acids from stingless bee honey samples.
Bibliografie:ObjectType-Article-1
SourceType-Scholarly Journals-1
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content type line 23
ISSN:0308-8146
1873-7072
1873-7072
DOI:10.1016/j.foodchem.2018.04.020