Phase equilibrium behavior of certain pairs of amino acids in aqueous solution

1981 ◽  
Vol 85 (23) ◽  
pp. 3533-3540 ◽  
Author(s):  
Charles E. Messer ◽  
Gary Malakoff ◽  
James Weil ◽  
Sherif Labib
Keyword(s):  
Aqueous Solution ◽  
Amino Acids ◽  
Phase Equilibrium ◽  
Equilibrium Behavior

Modification of the NRTL and Wilson models for the representation of phase equilibrium behavior of aqueous amino acid – electrolyte solutions

2008 ◽  
Vol 86 (12) ◽  
pp. 1126-1137 ◽  
Author(s):  
Rahmat Sadeghi
Keyword(s):  
Amino Acids ◽  
Phase Equilibrium ◽  
Amino Acid ◽  
Electrolyte Solutions ◽  
Acid Electrolyte ◽  
Amino Acid Molecule ◽  
Local Composition ◽  
Equilibrium Behavior ◽  
Amino Acid Solutions ◽  
Solid Liquid

The extended NRTL and Wilson local composition models for amino acid solutions have been modified for the representation of the phase equilibrium behavior of aqueous amino acid – electrolyte solutions by considering cells with random composition for the reference Gibbs energies or enthalpies of local composition cells with a central amino acid molecule and also with a central ion. These new local composition models, which have a molecular thermodynamic framework, have been used to model the vapor–liquid and solid–liquid equilibrium behavior of amino acids and small peptides in aqueous solutions as functions of temperature, ionic strength, and amino acid compositions. The utility of the models is demonstrated with a successful representation of the activity coefficients and the solubility of several amino acids in different aqueous solutions.Key words: amino acid, NRTL, Wilson, activity coefficient, solubility, aqueous solution.

A colorimetric chemosensor for the sequential detection of copper ion and amino acids (cysteine and histidine) in aqueous solution

RSC Advances ◽  
2015 ◽  
Vol 5 (39) ◽  
pp. 31179-31188 ◽  
Author(s):  
Yong Sung Kim ◽  
Gyeong Jin Park ◽  
Seul Ah Lee ◽  
Cheal Kim
Keyword(s):  
Aqueous Solution ◽  
Amino Acids ◽  
Copper Ion ◽  
Sequential Detection ◽  
Colorimetric Chemosensor

A simple and selective colorimetric chemosensor was reported for the sequential detection of Cu2+, cysteine and histidine.

Physico-chemical Characteristics of Amino Acids in Aqueous Solution of Amikacin Sulphate

2021 ◽  
Author(s):  
Poonam Chaudhary ◽  
◽  
Suvarcha Chauhan ◽  
Vivek Sharma ◽  
Kuldeep Singh ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Amino Acids ◽  
Chemical Characteristics ◽  
Physico Chemical

Formation of α-Keto Acids from α-Amino Acids by the Action of Free Radicals in Aqueous Solution

Science ◽  
1951 ◽  
Vol 114 (2964) ◽  
pp. 412-413
Author(s):  
G. R. A. Johnson ◽  
George Scholes ◽  
Joseph Weiss
Keyword(s):  
Aqueous Solution ◽  
Amino Acids ◽  
Free Radicals ◽  
Keto Acids
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