Microevaporators with accumulators for the screening of phase diagrams of aqueous solutions

2009 ◽  
Vol 95 (3) ◽  
pp. 033108 ◽  
Author(s):  
P. Moreau ◽  
J. Dehmoune ◽  
J.-B. Salmon ◽  
J. Leng
Keyword(s):  
Aqueous Solutions ◽  
Phase Diagrams

Phase diagrams of aqueous solutions of the potassium salts of malonic, succinic, and glutaric acids

2021 ◽  
pp. 106466
Author(s):  
Julia L. Roskam ◽  
Kristen L. Nowak ◽  
Karl T. Taylor ◽  
Samuel R. Rendler ◽  
Keith D. Beyer
Keyword(s):  
Aqueous Solutions ◽  
Phase Diagrams ◽  
Potassium Salts

Phase Diagrams of Aqueous Solutions of Polycarboxylates in the Presence of Divalent Cations

1994 ◽  
Vol 27 (22) ◽  
pp. 6594-6602 ◽  
Author(s):  
Monique A. V. Axelos ◽  
Michele M. Mestdagh ◽  
Jeanne Francois
Keyword(s):  
Aqueous Solutions ◽  
Phase Diagrams ◽  
Divalent Cations

Titration behavior and temperature—pH phase diagrams for dilute aqueous solutions of alkenesuccinic acids and their potassium and sodium salts

1988 ◽  
Vol 33 ◽  
pp. 75-83 ◽  
Author(s):  
Toyoko Imae ◽  
Sachiko Suzuki ◽  
Akihito Abe ◽  
Shoichi Ikeda ◽  
Yosio Fukui ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Phase Diagrams ◽  
Sodium Salts ◽  
Dilute Aqueous Solutions

Ultrathin frozen sections of yeast without aldehyde prefixation

1978 ◽  
Vol 36 (2) ◽  
pp. 58-59
Author(s):  
K. J. Böhm ◽  
a. E. Unger
Keyword(s):  
Aqueous Solutions ◽  
Biological Material ◽  
Yeast Cells ◽  
Frozen Sections ◽  
Good Preservation ◽  
Ultrathin Frozen Sections

During the last years it was shown that also by means of cryo-ultra-microtomy a good preservation of substructural details of biological material was possible. However the specimen generally was prefixed in these cases with aldehydes.Preparing ultrathin frozen sections of chemically non-prefixed material commonly was linked up to considerable technical and manual expense and the results were not always satisfying. Furthermore, it seems to be impossible to carry out cytochemical investigations by means of treating sections of unfixed biological material with aqueous solutions.We therefore tried to overcome these difficulties by preparing yeast cells (S. cerevisiae) in the following manner:

Transmission electron microscope studies in special ceramics

1978 ◽  
Vol 36 (1) ◽  
pp. 268-269
Author(s):  
A. Zangvil ◽  
L.J. Gauckler ◽  
G. Schneider ◽  
M. Rühle
Keyword(s):  
Phase Diagrams ◽  
Crystal Structures ◽  
Thin Foil ◽  
Limited Extent ◽  
Complex Materials ◽  
X Ray Diffraction ◽  
X Ray ◽  
Transmission Electron ◽  
Electron Microscopes ◽  
Lattice Resolution

The use of high temperature special ceramics which are usually complex materials based on oxides, nitrides, carbides and borides of silicon and aluminum, is critically dependent on their thermomechanical and other physical properties. The investigations of the phase diagrams, crystal structures and microstructural features are essential for better understanding of the macro-properties. Phase diagrams and crystal structures have been studied mainly by X-ray diffraction (XRD). Transmission electron microscopy (TEM) has contributed to this field to a very limited extent; it has been used more extensively in the study of microstructure, phase transformations and lattice defects. Often only TEM can give solutions to numerous problems in the above fields, since the various phases exist in extremely fine grains and subgrain structures; single crystals of appreciable size are often not available. Examples with some of our experimental results from two multicomponent systems are presented here. The standard ion thinning technique was used for the preparation of thin foil samples, which were then investigated with JEOL 200A and Siemens ELMISKOP 102 (for the lattice resolution work) electron microscopes.

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.

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