scholarly journals Extraction of Metal Ions Using Chemically Modified Silica Gel Covalently Bonded with 4,4′-Diaminodiphenylether and 4,4′-Diaminodiphenylsulfone-salicylaldehyde Schiff Bases

2006 ◽  
Vol 22 (8) ◽  
pp. 1105-1110 ◽  
Author(s):  
R. K. DEY ◽  
Usha JHA ◽  
A. C. SINGH ◽  
S. SAMAL ◽  
Alok R. RAY
1995 ◽  
Vol 117 (3-4) ◽  
pp. 239-244 ◽  
Author(s):  
Lilian L. Lorencetti ◽  
Yoshitaka Gushikem ◽  
Lauro T. Kubota ◽  
Graciliano de Oliveira Neto ◽  
João R. Fernandes

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