Ni(II) ion-imprinted solid-phase extraction and preconcentration in aqueous solutions by packed-bed columns

2004 ◽  
Vol 502 (1) ◽  
pp. 91-97 ◽  
Author(s):  
Arzu Ersöz ◽  
Rıdvan Say ◽  
Adil Denizli
2013 ◽  
Vol 726-731 ◽  
pp. 700-706
Author(s):  
Ming Pang ◽  
Hong Mei Wang ◽  
Wen Lin Hu ◽  
Li Li

A novel surface ion-imprinted polymer (S-IIP) has been synthesized by surface ion-imprinting concept in the presence of sodium trititanate whisker, Sr(II), chitosan and γ-Glycidoxypropyl trimethoxysilane (KH-560) for selective solid-phase extraction (SPE) of trace Co(II) from aqueous solutions. Characterizations of S-IIP were achieved by FT-IR spectra, SEM and surface area measurement. Results showed that the adsorption of cobalt(II) onto S-IIP follows pseudo-second order kinetics and could be fitted by the Langmuir isotherm with the maximum adsorption capacity Q being 8.27 mg×g-1 at 25°C. Thermodynamic parameters including DHº, DGº andDSº were calculated and it is indicated that Co(II) adsorption on S-IIP is exothermic, spontaneous and physical adsorption reaction. Moreover, according to the dimensionless separation factor RL (RL<1) it indicates that it’s a highly favourable adsorption. Finally, the detection limit (3s) of 5.6 ng·mL-1with the relative standard deviation (RSD) for 1.0 μg×mL-1 cobalt(II) of 1.86% (n=10) were obtained.


2016 ◽  
Vol 4 (2) ◽  
pp. 2450-2457 ◽  
Author(s):  
Nikita Tawanda Tavengwa ◽  
Nomso Hintsho ◽  
Shane Durbach ◽  
Isabel Weiersbye ◽  
Ewa Cukrowska ◽  
...  

2011 ◽  
Vol 173 (3-4) ◽  
pp. 423-431 ◽  
Author(s):  
Zhiqiang Cheng ◽  
Hongqing Wang ◽  
Yuyuan Wang ◽  
Fangfang He ◽  
Haisheng Zhang ◽  
...  

2009 ◽  
Vol 29 (8) ◽  
pp. 2464-2470 ◽  
Author(s):  
Cem Esen ◽  
Muge Andac ◽  
Nilay Bereli ◽  
Rıdvan Say ◽  
Emür Henden ◽  
...  

2007 ◽  
Vol 603 (1) ◽  
pp. 87-92 ◽  
Author(s):  
Jingchan Zhao ◽  
Bing Han ◽  
Yanfeng Zhang ◽  
Dandan Wang

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