A Novel Approach to Metal-Humic Complexation Studies by Lanthanide Ion Probe Spectroscopy

1989 ◽  
Vol 37 (1) ◽  
pp. 1-17 ◽  
Author(s):  
J. C. Dobbs ◽  
W. Susetyo ◽  
F. E. Knight ◽  
M. A. Castles ◽  
L. A. Carreira ◽  
...  
Keyword(s):  
Lanthanide Ion ◽  
Complexation Studies ◽  
Novel Approach ◽  
Ion Probe ◽  
Probe Spectroscopy

Lanthanide Ion Probe Spectroscopy for Metal Ion Speciation

2020 ◽  
pp. 103-138
Author(s):  
Wisnu Susetyo ◽  
Lionel A. Carreira ◽  
Leo V. Azarraga ◽  
David M. Grimm
Keyword(s):  
Metal Ion ◽  
Lanthanide Ion ◽  
Ion Probe ◽  
Probe Spectroscopy ◽  
Metal Ion Speciation

Competitive binding of protons and metal ions in humic substances by lanthanide ion probe spectroscopy

1989 ◽  
Vol 61 (14) ◽  
pp. 1519-1524 ◽  
Author(s):  
J. C. Dobbs ◽  
W. Susetyo ◽  
L. A. Carreira ◽  
L. V. Azarraga
Keyword(s):  
Metal Ions ◽  
Humic Substances ◽  
Competitive Binding ◽  
Lanthanide Ion ◽  
Ion Probe ◽  
Probe Spectroscopy

Fluorescence Studies of Metal-Humic Complexes with the Use of Lanthanide Ion Probe Spectroscopy

1996 ◽  
Vol 50 (3) ◽  
pp. 401-408 ◽  
Author(s):  
J. W. Thomason ◽  
W. Susetyo ◽  
L. A. Carreira
Keyword(s):  
Fluorescence Lifetime ◽  
Metal Binding ◽  
Binding Sites ◽  
Peak Shift ◽  
Binding Energies ◽  
Lanthanide Ion ◽  
Fluorescence Studies ◽  
Ion Probe ◽  
Humic Materials ◽  
Probe Spectroscopy

The acidic functional groups of humic materials are an abundant source of metal binding sites in the natural environment. Studies of metal binding to humics are of great environmental interest because the biological and physicochemical properties of metals are often changed dramatically as a result of complexation with humics. In order to understand how these heterogeneous organic macromolecules bind metals with such a large range of binding energies, lanthanide ion probe spectroscopy (LIPS) has been used to study changes in the fluorescence lifetime of the europium probe metal as it binds to these substances. A method developed by Horrocks and Sudnick for the determination of the number of water molecules bound to Eu3+ was used to calculate the coordination number of humic-bound Eu3+ from the fluorescence data. The peak shift of the Eu3+ hypersensitive emission band (616 nm) was used to calculate the change in charge of the complex. Equations based on Horrocks and Sudnick's method were also developed to calculate the distribution of metal associated with the different types of binding sites on humic substances by computer modeling of the fluorescence lifetime data.

Characterization of metal binding sites in fulvic acids by lanthanide ion probe spectroscopy

1989 ◽  
Vol 61 (5) ◽  
pp. 483-488 ◽  
Author(s):  
J. C. Dobbs ◽  
W. Susetyo ◽  
F. E. Knight ◽  
M. A. Castles ◽  
Lionel A. Carreira ◽  
...  
Keyword(s):  
Metal Binding ◽  
Binding Sites ◽  
Fulvic Acids ◽  
Lanthanide Ion ◽  
Metal Binding Sites ◽  
Ion Probe ◽  
Probe Spectroscopy

Synthesis and trivalent lanthanide ion complexation studies of new macrocyclic receptors based lactam ionophores

2014 ◽  
Vol 80 (3-4) ◽  
pp. 303-312 ◽  
Author(s):  
Fadime Güllü ◽  
Mevlüt Bayrakcı ◽  
Ahmed Nuri Kursunlu ◽  
Şengül Yiğiter ◽  
Şeref Ertul
Keyword(s):  
Lanthanide Ion ◽  
Macrocyclic Receptors ◽  
Complexation Studies ◽  
Trivalent Lanthanide ◽  
Ion Complexation

Confounding Factors in Lanthanide Ion Probe Spectrofluorometric Assay of Aminoglycoside Antibiotics

2000 ◽  
Vol 283 (1) ◽  
pp. 116-119 ◽  
Author(s):  
Marieke R. Gilmartin ◽  
John McLaren ◽  
Jochen Schacht
Keyword(s):  
Aminoglycoside Antibiotics ◽  
Confounding Factors ◽  
Lanthanide Ion ◽  
Ion Probe
Sign in / Sign up

Export Citation Format

Share Document