Enthalpies of transfer of amino acids from water to aqueous solutions of sodium nitrate and sodium perchlorate at T=298.15K

2006 ◽  
Vol 440 (1) ◽  
pp. 57-59 ◽  
Author(s):  
Chunli Liu ◽  
Ruisen Lin
Keyword(s):  
Amino Acids ◽  
Aqueous Solutions ◽  
Sodium Nitrate ◽  
Sodium Perchlorate ◽  
Enthalpies Of Transfer

Enthalpies of transfer of amino acids from water to aqueous solutions of formamide

2005 ◽  
Vol 432 (1) ◽  
pp. 20-22 ◽  
Author(s):  
Lin Ma ◽  
Nan Xu ◽  
Guimei Lin ◽  
Ruisen Lin
Keyword(s):  
Amino Acids ◽  
Aqueous Solutions ◽  
Enthalpies Of Transfer

Imaging polymers, proteins and dna in aqueous solutions with the atomic force microscope

1989 ◽  
Vol 47 ◽  
pp. 32-33
Author(s):  
S.A.C. Gould ◽  
B. Drake ◽  
C.B. Prater ◽  
A.L. Weisenhorn ◽  
S.M. Lindsay ◽  
...  
Keyword(s):  
Amino Acids ◽  
Dna Sequencing ◽  
Aqueous Solutions ◽  
Atomic Force Microscope ◽  
Piezoelectric Crystal ◽  
Atomic Force ◽  
Structure Of Molecules ◽  
Optical Lever

The atomic force microscope (AFM) is an instrument that can be used to image many samples of interest in biology and medicine. Images of polymerized amino acids, polyalanine and polyphenylalanine demonstrate the potential of the AFM for revealing the structure of molecules. Images of the protein fibrinogen which agree with TEM images demonstrate that the AFM can provide topographical data on larger molecules. Finally, images of DNA suggest the AFM may soon provide an easier and faster technique for DNA sequencing.The AFM consists of a microfabricated SiO2 triangular shaped cantilever with a diamond tip affixed at the elbow to act as a probe. The sample is mounted on a electronically driven piezoelectric crystal. It is then placed in contact with the tip and scanned. The topography of the surface causes minute deflections in the 100 μm long cantilever which are detected using an optical lever.

Sorption of Cadmium and Lead by Chelating Ion Exchangers Ostsorb OXIN, Ostsorb DETA, and Ostsorb DTTA

1994 ◽  
Vol 59 (6) ◽  
pp. 1311-1318 ◽  
Author(s):  
Ladislav Svoboda ◽  
Petr Vořechovský
Keyword(s):  
Ionic Strength ◽  
Aqueous Solutions ◽  
Sodium Perchlorate ◽  
Exchange Capacity ◽  
Chloride Ions ◽  
Point Of View ◽  
Alkaline Media ◽  
Ion Exchangers ◽  
Acidic Media ◽  
Cadmium And Lead

The properties of cellulose chelating ion exchangers Ostsorb have been studied in the sorption of cadmium and lead from aqueous solutions. The Cd(II) and Pb(II) ions are trapped by the Ostsorb OXIN and Ostsorb DETA ion exchangers most effectively in neutral and alkaline media but at these conditions formation of stable hydrolytic products of both metals competes with the exchange equilibria. From this point of view, Ostsorb DTTA appears to be a more suitable sorbent since it traps the Pb(II) and Cd(II) ions in acidic media already. Chloride ions interfere with the sorption of the two metals by Ostsorb DTTA whereas the ionic strength adjusted by the addition of sodium perchlorate does not affect the exchange capacity of this ion exchanger.

Vapor pressures of aqueous solutions of (silver, thallium, sodium) nitrate at 98.5.degree.C

1980 ◽  
Vol 25 (4) ◽  
pp. 331-332 ◽  
Author(s):  
Marie Christine Abraham ◽  
Maurice Abraham ◽  
James Sangster
Keyword(s):  
Aqueous Solutions ◽  
Sodium Nitrate ◽  
Vapor Pressures

Anodic behavior of a BK8 type tungsten-cobalt alloy in organo-aqueous solutions of sodium nitrate

2000 ◽  
Vol 36 (3) ◽  
pp. 232-234
Author(s):  
A. V. Balmasov ◽  
N. B. Kozlova ◽  
S. A. Lilin ◽  
E. M. Rumyantsev
Keyword(s):  
Aqueous Solutions ◽  
Sodium Nitrate ◽  
Anodic Behavior ◽  
Cobalt Alloy
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