Effect of Molecular Crowding on Complexation of Metal Ions and 8-Quinolinol-5-Sulfonic Acid

2021 ◽  
Author(s):  
Akihisa Miyagawa ◽  
Hiroyuki Komatsu ◽  
Shigenori Nagatomo ◽  
Kiyoharu Nakatani
Keyword(s):  
Metal Ions ◽  
Sulfonic Acid ◽  
Molecular Crowding

Synthesis and Chelation Properties of a New Polymeric Ligand Derived from 1-Amino-2-Naphthol-4-Sulfonic Acid

2015 ◽  
Vol 98 (1) ◽  
pp. 188-191
Author(s):  
Dhanasekaran Manivannan ◽  
Valsala Madhavan Nair Biju
Keyword(s):  
Metal Ions ◽  
Sulfonic Acid ◽  
Divalent Metal ◽  
Chelating Resin ◽  
Spectral Studies ◽  
Divalent Metal Ions ◽  
Solid Sorbent ◽  
Lead And Zinc ◽  
Copper Manganese ◽  
Seawater Samples

Abstract A novel chelating resin for preconcentration of heavy metals from various seawater samples has been developed by condensing 1-amino-2-hydroxy-7-[(4-hydroxyphenyl)diazenyl] naphthalene-4-sulfonic acid (AHDNS) with formaldehyde (1:2 mole ratio) in the presence of oxalic acid as the catalyst. The resin thus obtained was used as a solid sorbent for the separationof divalent metal ions present attrace levels in seawater. The functionalized phenol (AHDNS) was characterized by spectral studies. The polymeric resin AHDNS-formaldehyde (AHDNS-F) obtained by condensing thefunctionalized phenol and formaldehyde was characterized by IR and NMR spectral studies. The chelating property of the AHDNS-F resin towards divalent metal ions was studied as a function of pH and in the presence of electrolyte. The metal uptake properties of the resin were determined by using an atomic absorption spectrophotometer. This procedure was validated for recovery of divalent metal ions from seawater samples. The recoveries of cadmium, cobalt, copper, manganese, lead, and zinc were above 92% under the optimum preconcentration conditions. The LOD was <0.73 μg/L and the RSDs were <2%. Thus, the AHDNS-F resin can be widely used as a solid sorbent for the preconcentration of trace metals at ppm levelsin seawater samples.

scholarly journals Selective Adsorption of Metal Ions on Novel Chitosan-Supported Sulfonic Acid Resin.

1997 ◽  
Vol 30 (5) ◽  
pp. 846-851 ◽  
Author(s):  
Kazuo Kondo ◽  
Shin-ichi Nakagawa ◽  
Michiaki Matsumoto ◽  
Takayuki Yamashita ◽  
Isao Furukawa
Keyword(s):  
Metal Ions ◽  
Sulfonic Acid ◽  
Selective Adsorption ◽  
Acid Resin ◽  
Adsorption Of Metal Ions ◽  
Sulfonic Acid Resin

The 8-Quinolinol-5-sulfonic Acid Chelates of Some Rare Earth Metal Ions

1958 ◽  
Vol 62 (6) ◽  
pp. 700-702 ◽  
Author(s):  
Ben F. Freasier ◽  
A. G. Oberg ◽  
Wesley W. Wendlandt
Keyword(s):  
Rare Earth ◽  
Metal Ions ◽  
Rare Earth Metal ◽  
Sulfonic Acid ◽  
Earth Metal
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