scholarly journals A Procedure of Separation and Preconcentration for Titanium Determination in Sawater Samples by ICP-OES

2007 ◽  
Vol 2 (1) ◽  
pp. 1-11 ◽  
Author(s):  
Sérgio Rocha ◽  
Sérgio Ferreira
Author(s):  
Masoud Aghahoseini ◽  
Gholamhassan Azimi ◽  
M. K. Amini

Determination of traces of Cd, Co, Cu, Mn and Pb elements in zirconium and its alloys by inductively coupled plasma optical emission spectrometry (ICP OES) suffers from severe spectral interferences...


Talanta ◽  
2009 ◽  
Vol 79 (4) ◽  
pp. 1050-1054 ◽  
Author(s):  
Junichi Nakajima ◽  
Masashi Ohno ◽  
Katsumi Chikama ◽  
Tatsuya Seki ◽  
Koichi Oguma

2012 ◽  
Vol 9 (2) ◽  
pp. 1007-1016 ◽  
Author(s):  
Reem M. Alghanmi

A new chelating matrix was prepared by immobilizing 1,2-dihydr-oxyanthraquinone, or alizarin (AZ), on silica gel modified with (3-aminopropyl)trimethoxysilane. The matrix was characterized by FTIR spectroscopy and elemental analysis. The new matrix was used to preconcentrate Cd(II), Cu(II), Ni(II), Pb(II) and Zn(II) prior to their determination by inductively coupled plasma optical emission spectrometry (ICP-OES). The optimum pH was 5 and the optimum extraction time was approximately 15 minutes using the batch method. Common electrolytes and metal ions did not interfere with the separation and determination of the analytes. The adsorption capacity of the new sorbent was 67.4, 163.5, 212.8, 76.4 and 180.3 μmol/g for Cd(II), Cu(II), Ni(II), Pb(II) and Zn(II), respectively. The relative standard deviations (RSD) were less than 3.0%. This method allowed for successful separation and preconcentration of trace metal ions in different water samples with satisfactory results.


2018 ◽  
Vol 33 (11) ◽  
pp. 1974-1980 ◽  
Author(s):  
Peng Li ◽  
Jing Wang ◽  
Fei Pei ◽  
Qin Liu ◽  
Yong Fang ◽  
...  

Thiol-rich polyhedral oligomeric silsesquioxane modified magnetic nanoparticles as a novel adsorbent for the extraction of Cd(ii) and Pb(ii) in foods.


Molecules ◽  
2018 ◽  
Vol 23 (7) ◽  
pp. 1787 ◽  
Author(s):  
Krzysztof Kilian ◽  
Łukasz Cheda ◽  
Mateusz Sitarz ◽  
Katarzyna Szkliniarz ◽  
Jarosław Choiński ◽  
...  

The rapid increase in applications of scandium isotopes in nuclear medicine requires new efficient production routes for these radioisotopes. Recently, irradiations of calcium in cyclotrons by α, deuteron, and proton beams have been used. Therefore, effective post-irradiation separation and preconcentration of the radioactive scandium from the calcium matrix are important to obtain the pure final product in a relatively small volume. Nobias resin was used as a sorbent for effective separation of 44Sc from calcium targets. Separation was performed at pH 3 using a column containing 10 mg of resin. Scandium was eluted with 100 μL of 2 mol L−1 HCl. Particular attention was paid to the reduction of calcium concentration, presence of metallic impurities, robustness and simple automation. 44Sc was separated with 94.9 ± 2.8% yield, with results in the range of 91.7–99.0%. Purity of the eluate was confirmed with ICP-OES determination of metallic impurities and >99% chelation efficiency with DOTATATE, followed by >36 h radiochemical stability of the complex. A wide range of optimal conditions and robustness to target variability and suspended matter facilitates the proposed method in automatic systems for scandium isotope separation and synthesis of scandium-labeled radiopharmaceuticals.


2019 ◽  
Vol 55 (15) ◽  
pp. 2659-2669 ◽  
Author(s):  
Vladimir N. Losev ◽  
Victoriya V. Parfenova ◽  
Evgeney V. Elsuf’ev ◽  
Elena V. Borodina ◽  
Segey I. Metelitsa ◽  
...  

1998 ◽  
Vol 13 (10) ◽  
pp. 1173-1176 ◽  
Author(s):  
Thorsten J. Einhäuser ◽  
Thomas G. Pieper ◽  
Bernhard K. Keppler

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