Development of a reversed dispersive based graphene functionalized with multiwalled carbon nanotubes for detection of β2-agonists in pork by high-performance liquid chromatography
A reliable and inexpensive pretreatment procedure in the determination of β2-agonists in pork was developped. The procedure used a nanocomposite of multiwalled carbon nanotubes (CNTs) functionalized with graphene (rGO) as the reversed dispersive sorbent. It was analyzed after purification by high-pe...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Tsinghua University Press
2018-06-01
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| Series: | Food Science and Human Wellness |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2213453017301283 |
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| Summary: | A reliable and inexpensive pretreatment procedure in the determination of β2-agonists in pork was developped. The procedure used a nanocomposite of multiwalled carbon nanotubes (CNTs) functionalized with graphene (rGO) as the reversed dispersive sorbent. It was analyzed after purification by high-performance liquid chromatography, the extraction time and the properties of the nanocomposite were optimized. Under optimized conditions, present method has linear response over concentration range of 0.5–50 ng/mL in pork samples with a satisfactory detection limit close to 0.1 ng/mL. The precisions of the current method (coefficient of variation) are lower than 5%, while recoveries are more than 98.3%. The nanocomposite exhibited high adsorptivity, long-term storage stability, satisfactory anti-interfering activity and high selectivity toward β2-agonists compared with those of rGO and CNTs. Keywords: High-performance liquid chromatography, Graphene, Multiwalled carbon nanotube, Ractopamine, Salbutamol |
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| ISSN: | 2213-4530 |