Poly(styrene-co-N-methacryloyl-l-phenylalanine methyl ester)-functionalized magnetic nanoparticles as sorbents for the analysis of sodium benzoate in beverages

	Poly(styrene-co-N-methacryloyl-l-phenylalanine methyl ester)-functionalized magnetic nanoparticles as sorbents for the analysis of sodium benzoate in beverages
	Ji, Shilei 1,2; Li, Nan 2,3; Qi, Li 2,3; Wang, Minglin 1
刊名	JOURNAL OF SEPARATION SCIENCE
	2017
卷号	40 期号:2 页码:466-471
关键词	Beverages Food Preservatives High-performance Liquid Chromatography Magnetic Solid-phase Extraction Sodium Benzoate
英文摘要	In this study, poly(styrene-co-N-methacryloyl-l-phenylalanine methyl ester)-functionalized magnetic nanoparticles were constructed and used as magnetic solid-phase extraction sorbents for analysis of food preservatives in beverages. To prepare the poly(amino acid)-based sorbents, N-methacryloyl-l-phenylalanine methyl ester, and styrene served as the functional monomers and modified onto the magnetic nanoparticles via free radical polymerization. Interestingly, compared with propylparaben and potassium sorbate, the proposed poly(amino acid)-based sorbents showed a good selectivity to sodium benzoate. The adsorption capacity of the sorbents to sodium benzoate was 6.08 +/- 0.31 mg/g. Moreover, the fast adsorption equilibrium could be reached within 5 min. Further, the resultant poly(amino acid)-based sorbents were applied in the analysis of sodium benzoate in real beverage samples. The results proved that the proposed magnetic solid-phase extraction sorbents have a great potential for the analysis of preservatives in food samples.
语种	英语
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/38120]
专题	化学研究所_活体分析化学实验室
作者单位	1.Shandong Agr Univ, Coll Food Sci & Engn, Tai An, Shandong, Peoples R China 2.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, Key Lab Analyt Chem Living Biosyst, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Ji, Shilei,Li, Nan,Qi, Li,et al. Poly(styrene-co-N-methacryloyl-l-phenylalanine methyl ester)-functionalized magnetic nanoparticles as sorbents for the analysis of sodium benzoate in beverages[J]. JOURNAL OF SEPARATION SCIENCE,2017,40(2):466-471.
APA	Ji, Shilei,Li, Nan,Qi, Li,&Wang, Minglin.(2017).Poly(styrene-co-N-methacryloyl-l-phenylalanine methyl ester)-functionalized magnetic nanoparticles as sorbents for the analysis of sodium benzoate in beverages.JOURNAL OF SEPARATION SCIENCE,40(2),466-471.
MLA	Ji, Shilei,et al."Poly(styrene-co-N-methacryloyl-l-phenylalanine methyl ester)-functionalized magnetic nanoparticles as sorbents for the analysis of sodium benzoate in beverages".JOURNAL OF SEPARATION SCIENCE 40.2(2017):466-471.