Selective solid-phase extraction of trace Au(III), Pd(II) and Pt(IV) using activated carbon modified with 2,6-diaminopyridine

被引：0
作者：
Dandan Li
Xijun Chang
Zheng Hu
Qihui Wang
Zhifeng Tu
Ruijun Li
机构：
[1] Lanzhou University,Department of Chemistry
[2] Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province,undefined
来源：
Microchimica Acta | 2011年 / 174卷
关键词：
Solid-phase extraction; Activated carbon modified with 2,6-diaminopyridine; Au(III); Pd(II); Pt(IV);
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A new sorbent was prepared by immobilization of 2,6-diaminopyridine on activated carbon and then used as a solid-phase extractant for trace Au(III), Pd(II) and Pt(IV) before their determination by ICP-AES. Effects of pH, the shaking time, the sample flow rate and volume, the elution condition and the potentially interfering ions were investigated. The optimum pH value is 1. The maximum static adsorption capacity for the three ions is 202.7, 38.5 and 30.1 mg g−1, respectively. The adsorbed metal ions can be completely eluted by 2 mL of the eluent solution that contains 0.05 mol L−1 HCl and 5% thiourea. Common other ions do not interfere. The detection limits (3σ) are 0.16, 0.33 and 0.29 ng mL−1, respectively. The relative standard deviation (RSD) was lower than 3.0% (n = 8). The new sorbent was applied to the preconcentration of the three ions in ore and rock samples with satisfactory results.
引用
收藏
页码：131 / 136
页数：5
相关论文
共 93 条
[1]  
Fontàs C(2007)Efficient thiacalix[4]arenes for the extraction and separation of Au(III), Pd(II) and Pt(IV) metal ions from acidic media incorporated in membranes and solid phases Sep Purif Technol 54 322-328
[2]  
Anticó E(2010)Selective homogeneous liquid-liquid extraction and preconcentration of copper(II) into a micro droplet using a benzo-substituted macrocyclic diamide, and its determination by electrothermal atomic absorption spectrometry Microchim Acta 168 115-121
[3]  
Vocanson F(2010)Phosphorus recovery from synthetic swine wastewater by chemical precipitation using response surface methodology J Hazard Mater 176 1083-1088
[4]  
Lamartine R(2007)Manganese and zinc operational fractionation in beer by means of tandem ion exchange column assemblage and flame atomic absorption spectrometry Microchim Acta 159 325-332
[5]  
Seta P(2004)The use of electron backscatter diffraction for the investigation of nano crystalline materials and the move towards orientation imaging in the TEM Microchim Acta 147 157-165
[6]  
Alizadeh K(2004)Solid-phase extraction and preconcentration of cadmium(II) in aqueous solution with Cd(II)-imprinted resin (poly-Cd(II)-DAAB-VP) packed columns Anal Chim Acta 519 173-179
[7]  
Zohrevand S(1996)Pesticide monitoring of drinking water with the help of solid-phase extraction and high-performance liquid chromatography J Chromatogr A 737 67-74
[8]  
Ghiasvand A(1999)Functionalized cellulose sorbents for preconcentration of trace metals in environmental analysis Crit Rev Anal Chem 29 313-321
[9]  
Hashemi P(2007)Solid-phase extraction of trace Cu(II) Fe(III) and Zn(II) with silica gel modified with curcumin from biological and natural water samples by ICP-OES Microchem J 86 189-194
[10]  
Shamsipur M(2005)Surface modification and characterisation of a coal-based activated carbon Carbon 43 3132-3143
12345678910