Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8588660 | Food Science and Human Wellness | 2018 | 25 Pages |
Abstract
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
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Agricultural and Biological Sciences
Food Science
Authors
Ying-Wen Qian, Xia Hong, Cai-Xia Yuan, Xin-Kui Zhou, Hai-Ning He, Dong-Shuai Wang,