On-line separation and pre-concentration on a mesoporous silica-grafted graphene oxide adsorbent coupled with solution cathode glow discharge-atomic emission spectrometry for the determination of lead

CORC > 上海硅酸盐研究所 > 中国科学院上海硅酸盐研究所 > 无机材料分析测试中心 > 期刊论文

	On-line separation and pre-concentration on a mesoporous silica-grafted graphene oxide adsorbent coupled with solution cathode glow discharge-atomic emission spectrometry for the determination of lead
	Mo, Jiamei 1; Zhou, Lei 1,2; Li, Xiaohong 1; Li, Qing 1; Wang, Lianjun 2; Wang, Zheng 1
刊名	MICROCHEMICAL JOURNAL
	2017
卷号	130 页码:353-359
关键词	Separation and pre-concentration Solution-cathode glow discharge Mesoporous silica-grafted graphene oxide Solid-phase extraction
英文摘要	A method has been developed to improve the sensitivity of the solution-cathode glow discharge-atomic emission spectrometry (SCGD-AES) for lead determination by coupled with flow injection (FI) technique based on an online solid phase extraction (SPE) separation system. A mesoporous silica-grafted graphene oxide (GO-SBA-15) material was used as sorbent and packed it in a SPE microcolumn for its high selective adsorption capacity of Pb(II). An enrichment factor of 15 was achieved under optimized conditions, at a material usage amount of 30 mg, an enrichment flow rate of 1.0 mL min(-1) and an eluent of 0.15 mol L-1 HNO3. The detection limit (DL) of Pb(II) was calculated to be 0.91 mu g L-1. Compared to single SCGD-AES, the sensitivity of Pb(II) was significantly enhanced by FI-SCGD-AES technique and DL could be improved 14-fold. The linear range was 10-2000 mu g L-1 and the relative standard deviation of the method for eleven replicate measurements of 100 mu g L-1 for Pb(II) was 3.8%. The accuracy was validated using certified reference materials of GBW09101b and GBW07310. The method was applied for the determination of target ions in different environmental samples with satisfactory results. (C) 2016 Elsevier B.V. All rights reserved.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Chemistry, Analytical
研究领域[WOS]	Chemistry
关键词[WOS]	SOLID-PHASE EXTRACTION ; REPLACEMENT-ION CHROMATOGRAPHY ; ABSORPTION-SPECTROMETRY ; TRACE AMOUNTS ; SENSITIVE DETERMINATION ; NONIONIC SURFACTANTS ; ELEMENTAL ANALYSIS ; LIQUID CATHODE ; FORMIC-ACID ; METAL-IONS
收录类别	SCI
语种	英语
WOS记录号	WOS:000390072400049
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/21926]
专题	上海硅酸盐研究所_无机材料分析测试中心_期刊论文
作者单位	1.Chinese Acad Sci, Shanghai Inst Ceram, Shanghai 200050, Peoples R China 2.Donghua Univ, Coll Mat Sci & Engn, State Key Lab Modificat Chem Fibers & Polymer Mat, Shanghai 201620, Peoples R China
推荐引用方式 GB/T 7714	Mo, Jiamei,Zhou, Lei,Li, Xiaohong,et al. On-line separation and pre-concentration on a mesoporous silica-grafted graphene oxide adsorbent coupled with solution cathode glow discharge-atomic emission spectrometry for the determination of lead[J]. MICROCHEMICAL JOURNAL,2017,130:353-359.
APA	Mo, Jiamei,Zhou, Lei,Li, Xiaohong,Li, Qing,Wang, Lianjun,&Wang, Zheng.(2017).On-line separation and pre-concentration on a mesoporous silica-grafted graphene oxide adsorbent coupled with solution cathode glow discharge-atomic emission spectrometry for the determination of lead.MICROCHEMICAL JOURNAL,130,353-359.
MLA	Mo, Jiamei,et al."On-line separation and pre-concentration on a mesoporous silica-grafted graphene oxide adsorbent coupled with solution cathode glow discharge-atomic emission spectrometry for the determination of lead".MICROCHEMICAL JOURNAL 130(2017):353-359.