Results 251 to 260 of about 61,606 (285)

Calorimetry Studies of Chlorpromazine Hydrochloride in Solution

Langmuir, 2000
The self-association of the tranquilizer chlorpromazine hydrochloride in aqueous solution was studied. Using isothermal titration calorimetry, the critical micelle concentration and solvent−micelle interactions were evaluated as a function of temperature, ionic strength, and pH.
Yoshihito David Saito, Shandiz Tehrani, Mariko M. Okamoto, Henry H. Chang, Phoebe Dea   +4 more
openaire   +1 more source

Solutions calorimetry apparatus for undergraduate teaching

Journal of Chemical Education, 1991
Because many students do not understand the function of the bridge, these authors designed an activity that provides access to each of its components.
Stephen W. Bigger, Geoffrey A. Meilak, Bruce Verity   +2 more
openaire   +1 more source

Calorimetry of model biomolecules in aqueous solution

Thermochimica Acta, 1985
Abstract A survey of the thermodynamic properties of aqueous solutions of model compounds is presented. The review is focused on the analysis of the thermal data obtained from dilution and mixing experiments monitoring weak interactions occurring between solvated solute species.
openaire   +2 more sources

Low‐temperature calorimetry of biological macromolecule solutions

Journal of Polymer Science: Polymer Symposia, 1981
AbstractThe thermal properties of several biopolymeric (DNA, RNAse, Folch‐Pi apoprotein)–water systems have been investigated by low‐temperature adiabatic differential scanning microcalorimetry. Determination of the heat change and temperature of fusion of the water and eutectic mixture allowed resolution of the various water states in native polymer ...
E. L. Andronikashvili, G. M. Mrevlishvili, G. Sh. Japaridze, V. M. Sokhadze, D. A. Tatishvili   +4 more
openaire   +1 more source

Characterisation of polyethylene glycols using solution calorimetry

International Journal of Pharmaceutics, 1991
Abstract The heats of solution of a range of polyethylene glycols (PEGs) have been measured using samples prepared under various heating and cooling protocols. The values obtained were shown to be highly sensitive to both PEG molecular weight and to the thermal history of the sample.
D.Q.M. Craig, J.M. Newton
openaire   +1 more source

Sample holders for solution calorimetry

Journal of Physics E: Scientific Instruments, 1968
Two types of sample holder employing microscope cover slips are described, having the advantages of cheap and rapid construction, convenient loading and negligible heat of opening.
openaire   +1 more source

Recent developments in micro solution calorimetry

Thermochimica Acta, 1985
Abstract A group of microcalorimetric vessels primarily designed for the dissolution of slightly soluble compounds in water is described. Gaseous and liquid solutes are-injected into a flow of solvent and the measurements in these cases are automatized by means of microprocessors. The amount of solute used in each experiment is typically 0.4 ml and 0.
openaire   +1 more source

Absorbed dose calorimetry using various aqueous solutions

International Journal of Radiation Applications and Instrumentation. Part C. Radiation Physics and Chemistry, 1991
Abstract The relative temperature rise per Gy was measured in a calorimeter for seven dilute aqueous solutions irradiated with 20 MV X-rays. The difference between the measured temperature rise and the rise predicted from complete conversion of absorbed energy into heat depended on the radiation-induced chemical reactions.
Klassen, N., Ross, C. K.
openaire   +2 more sources

Enzyme kinetics in crowded solutions from isothermal titration calorimetry

Analytical Biochemistry, 2019
Isothermal titration calorimetry (ITC) is a universal technique that directly measures the heat absorbed or released in a process. ITC is typically used to determine thermodynamic parameters of association of molecules without the need to label them. However, ITC is still rarely applied to study chemical reactions catalyzed by enzymes.
Ksenia, Maximova, Jakub, Wojtczak, Joanna, Trylska   +2 more
openaire   +2 more sources

Application of Solution Calorimetry in Pharmaceutical and Biopharmaceutical Research

Current Pharmaceutical Biotechnology, 2005
In solution calorimetry the heat of solution (Delta(sol)H) is recorded as a solute (usually a solid) dissolves in an excess of solvent. Such measurements are valuable during all the phases of pharmaceutical formulation and the number of applications of the technique is growing.
Royall, P G, Gaisford, S
openaire   +2 more sources