Quaternary ammonium-functionalized MCM-48 mesoporous silica as a sorbent for the dispersive solid-phase extraction of endocrine disrupting compounds in water

	Quaternary ammonium-functionalized MCM-48 mesoporous silica as a sorbent for the dispersive solid-phase extraction of endocrine disrupting compounds in water
	Zhang, Shijuan ; Lu, Fengli ; Ma, Xiaoyun ; Yue, Mingbo ; Li, Yanxin ; Liu, Jiammin ; You, Jinmao
刊名	JOURNAL OF CHROMATOGRAPHY A
	2018-07-06
英文摘要	MCM-48 mesoporous silica was functionalized with dimethyloctadecyl[3-(dimethoxysilyl)propyl]ammonium chloride, a quaternary ammonium salt with a long hydrophobic chain, to prepare a new sorbent for the dispersive solid-phase extraction (DSPE) of seven endocrine disrupting compounds (EDCs) including 4-hexylphenol, 4-octylphenol, 4-nonylphenol, bisphenol A, estrone, 17 beta-estradiol and estriol in water. A series of differently functionalized MCM-48 materials were also synthesized, and they served as reference materials to study the mechanism. The developed DSPE method was combined with HPLC with fluorescence detection to evaluate the adsorption performance. The results indicated that the quaternary ammonium-functionalized MCM-48 mesoporous silica can be used as ideal sorbent for EDCs in water with recoveries of higher than 95% due to the electrostatic interactions and hydrophobic effect. Hydrogen bonding and pi-pi interactions in other synthesized materials could lead to about 25-30% increase in recoveries, but the results for polyhydroxy compounds were still not satisfying. The quaternary ammonium-functionalized MCM-48 mesoporous silica was successfully applied to the DSPE of EDCs in real water samples. The optimum extraction conditions were sorbent amount, 15 mg; desorption time; 5 min; elution volume, 0.8 mL; sample pH 3.0; and salt addition, 5 g/L. The limits of detection were in the range of 1.2-2.6 ng/L, while the limits of quantitation were in the range of 4.3-8.3 ng/L. (C) 2018 Elsevier B.V. All rights reserved.
出版者	ELSEVIER SCIENCE BV
内容类型	期刊论文
源URL	[http://ir.nwipb.ac.cn/handle/363003/13820]
专题	西北高原生物研究所_中国科学院西北高原生物研究所
推荐引用方式 GB/T 7714	Zhang, Shijuan,Lu, Fengli,Ma, Xiaoyun,et al. Quaternary ammonium-functionalized MCM-48 mesoporous silica as a sorbent for the dispersive solid-phase extraction of endocrine disrupting compounds in water[J]. JOURNAL OF CHROMATOGRAPHY A,2018.
APA	Zhang, Shijuan.,Lu, Fengli.,Ma, Xiaoyun.,Yue, Mingbo.,Li, Yanxin.,...&You, Jinmao.(2018).Quaternary ammonium-functionalized MCM-48 mesoporous silica as a sorbent for the dispersive solid-phase extraction of endocrine disrupting compounds in water.JOURNAL OF CHROMATOGRAPHY A.
MLA	Zhang, Shijuan,et al."Quaternary ammonium-functionalized MCM-48 mesoporous silica as a sorbent for the dispersive solid-phase extraction of endocrine disrupting compounds in water".JOURNAL OF CHROMATOGRAPHY A (2018).