ICP-OES determination of trace metal ions after preconcentration by 4-(8-hydroxy-5-quinolylazo)naphthalenesulfonic acid modified silica gel

2008 ◽  
Vol 891 (1-3) ◽  
pp. 45-49 ◽  
Author(s):  
Xijun Chang ◽  
Haixia Luo ◽  
Yuemei Cui ◽  
Xiangbing Zhu ◽  
Yunhui Zhai ◽  
...  
Keyword(s):  
Trace Metal ◽  
Metal Ions ◽  
Silica Gel ◽  
Icp Oes ◽  
Modified Silica ◽  
Modified Silica Gel ◽  
Trace Metal Ions

scholarly journals ICP-OES Determination of Trace Metal Ions after Preconcentration Using Silica Gel Modified with 1,2-Dihydroxyanthraquinone

2012 ◽  
Vol 9 (2) ◽  
pp. 1007-1016 ◽  
Author(s):  
Reem M. Alghanmi
Keyword(s):  
Trace Metal ◽  
Metal Ions ◽  
Silica Gel ◽  
Inductively Coupled Plasma ◽  
Emission Spectrometry ◽  
Icp Oes ◽  
Trace Metal Ions ◽  
Relative Standard ◽  
Separation And Preconcentration

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.

Determination of Metal Ions in Natural Waters by Flame-AAS after Preconcentration on a 5-Amino-1,3,4-Thiadiazole-2-Thiol Modified Silica Gel.

1999 ◽  
Vol 32 (9) ◽  
pp. 1807-1820 ◽  
Author(s):  
Pedro de Magalhães Padilha ◽  
Luis A. de Melo Gomes ◽  
Cilene C. Federici Padilha ◽  
José Celso Moreira ◽  
Newton L. Dias Filho
Keyword(s):  
Metal Ions ◽  
Silica Gel ◽  
Natural Waters ◽  
Modified Silica ◽  
Modified Silica Gel

scholarly journals Determination of Metal Ions in Fuel Ethanol after Preconcentration on 5-Amino-1,3,4-Thiadiazole-2-Thiol Modified Silica Gel

1998 ◽  
Vol 9 (5) ◽  
pp. 494-498 ◽  
Author(s):  
Luis A. de Melo Gomes ◽  
Pedro de Magalhães Padilha ◽  
José Celso Moreira ◽  
Newton L. Dias Filho ◽  
Yoshitaka Gushikem
Keyword(s):  
Metal Ions ◽  
Silica Gel ◽  
Fuel Ethanol ◽  
Modified Silica ◽  
Modified Silica Gel

Determination of trace metals in natural samples by ICP-OES after preconcentration on modified silica gel and on modified silica nanoparticles

2009 ◽  
Vol 165 (3-4) ◽  
pp. 319-327 ◽  
Author(s):  
Lijun Zhang ◽  
Yunhui Zhai ◽  
Xijun Chang ◽  
Qun He ◽  
Xinping Huang ◽  
...  
Keyword(s):  
Trace Metals ◽  
Silica Nanoparticles ◽  
Silica Gel ◽  
Icp Oes ◽  
Modified Silica ◽  
Modified Silica Gel ◽  
Modified Silica Nanoparticles

Surface modified silica gel for extraction of metal ions: an environment friendly method for waste treatment

2005 ◽  
Vol 21 (3) ◽  
pp. 232-237 ◽  
Author(s):  
R. K. Sharma ◽  
S. Mittal ◽  
S. Azami ◽  
A. Adholeya
Keyword(s):  
Metal Ions ◽  
Silica Gel ◽  
Waste Treatment ◽  
Modified Silica ◽  
Modified Silica Gel ◽  
Environment Friendly ◽  
Surface Modified

Simple semiquantitative determination of trace metal ions by use of reagent gel columns—II

Talanta ◽  
1976 ◽  
Vol 23 (3) ◽  
pp. 244-246 ◽  
Author(s):  
Yong Keun Lee ◽  
Kyu Ja Whang ◽  
Keihei Ueno
Keyword(s):  
Trace Metal ◽  
Metal Ions ◽  
Trace Metal Ions ◽  
Semiquantitative Determination
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