Xylenol Orange-Functionalized Halloysite Nanotubes as a Novel Adsorbent for Selective Solid-phase Extraction and Determination of Trace Noble Elements

doi:10.1002/jccs.201700111

ISL OpenIR > 青海盐湖研究所知识仓储

	Xylenol Orange-Functionalized Halloysite Nanotubes as a Novel Adsorbent for Selective Solid-phase Extraction and Determination of Trace Noble Elements
	Bao, Amin; Zheng, Hong; Liu, Zeyu; Huang, Dongfang; Li, Bo; Wang, Shuya
第一作者	Xie, Shaolei
	2017-08
发表期刊	JOURNAL OF THE CHINESE CHEMICAL SOCIETY
ISSN	0009-4536
卷号	64 期号:8 页码:953-961
关键词	Xylenol Orange-modified Halloysite Nanotubes Solid-phase Extraction Trace Noble Elements Inductively Coupled Plasma-atomic Emission Spectrometry
摘要	A novel method using xylenol orange-modified halloysite nanotubes as a solid-phase sorbent has been developed for the simultaneous preconcentration and separation of trace Au(III) and Pd(II) prior to their determination by inductively coupled plasma-atomic emission spectrometry (ICP-AES). The experimental effects of pH, the amount of adsorbent, sample flow rate, sample volume, interfering ions, and the elution condition were investigated in detail. Au(III) and Pd(II) were retained on the column at pH 3, and eluted with 2.0 mL of 1.0 mol/L HCl + 2% CS(NH2)(2) solution. Common interfering ions did not have any impact on the adsorption, separation, and determination. An enrichment factor of 150 was obtained. The maximum adsorption capacities of the adsorbent were 41.63 and 47.82 mg/g for Au(III) and Pd(II), respectively, under the optimum conditions. By the definition of IUPAC, the detection limits (3 sigma) of this method for Au(III) and Pd(II) were 0.31 and 0.27 ng/mL, and the relative standard deviations (RSDs) were 2.7 and 3.2%, respectively (n = 8). This newly developed method was verified by certified reference materials, and has been successfully applied to the determination of trace Au(III) and Pd(II) in mine samples with satisfactory results. It can be confidently predicted that the method can be used for the determination trace Au(III) and Pd(II) in other real samples because of its high selectivity, sensitivity, and reproducibility.
DOI	10.1002/jccs.201700111
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.isl.ac.cn/handle/363002/6247
专题	青海盐湖研究所知识仓储盐湖资源综合利用工程技术中心
推荐引用方式 GB/T 7714	Bao, Amin,Zheng, Hong,Liu, Zeyu,et al. Xylenol Orange-Functionalized Halloysite Nanotubes as a Novel Adsorbent for Selective Solid-phase Extraction and Determination of Trace Noble Elements[J]. JOURNAL OF THE CHINESE CHEMICAL SOCIETY,2017,64(8):953-961.
APA	Bao, Amin,Zheng, Hong,Liu, Zeyu,Huang, Dongfang,Li, Bo,&Wang, Shuya.(2017).Xylenol Orange-Functionalized Halloysite Nanotubes as a Novel Adsorbent for Selective Solid-phase Extraction and Determination of Trace Noble Elements.JOURNAL OF THE CHINESE CHEMICAL SOCIETY,64(8),953-961.
MLA	Bao, Amin,et al."Xylenol Orange-Functionalized Halloysite Nanotubes as a Novel Adsorbent for Selective Solid-phase Extraction and Determination of Trace Noble Elements".JOURNAL OF THE CHINESE CHEMICAL SOCIETY 64.8(2017):953-961.