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Xylenol Orange-Functionalized Halloysite Nanotubes as a Novel Adsorbent for Selective Solid-phase Extraction and Determination of Trace Noble Elements
Bao, Amin1,2,3; Zheng, Hong1,2,4; Liu, Zeyu1,2,3; Huang, Dongfang1,2,3; Li, Bo1,2; Wang, Shuya1,2
2017-08-01
发表期刊JOURNAL OF THE CHINESE CHEMICAL SOCIETY
卷号64期号:8页码:953-961
文章类型Article
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.
关键词Xylenol Orange-modified Halloysite Nanotubes Solid-phase Extraction Trace Noble Elements Inductively Coupled Plasma-atomic Emission Spectrometry
WOS标题词Science & Technology ; Physical Sciences
关键词[WOS]ATOMIC-ABSORPTION-SPECTROMETRY ; HEAVY-METAL IONS ; ENVIRONMENTAL-SAMPLES ; AMBERLITE XAD-2 ; PRECONCENTRATION ; WATER ; LEAD ; ADSORPTION ; RESINS
收录类别SCI
语种英语
WOS研究方向Chemistry
WOS类目Chemistry, Multidisciplinary
WOS记录号WOS:000408932400008
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
作者单位1.Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Comprehens & Highly Efficient Utilizat Sa, Xining 810008, Qinghai, Peoples R China
2.Chinese Acad Sci, Qinghai Inst Salt Lakes, Qinghai Engn & Technol Res Ctr Comprehens Utiliza, Xining 810008, Qinghai, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Chongqing Normal Univ, Chongqing 401331, Peoples R China
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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.
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