Results 21 to 30 of about 185,695 (283)

Purity determination of glutamic acid by DSC

open access: yesShipin yu jixie, 2023
Objective: The feasibility of the determination of glutamate purity was studied by differential scanning calorimetry. Methods: Indium and Zinc were used to correct the instrument parameters. Under the conditions of nitrogen atmosphere and flow rate of 50
MA Ying-nan   +5 more
doaj   +1 more source

Implications of storage and handling conditions on glass transition and potential devitrification of oocytes and embryos [PDF]

open access: yes, 2014
Devitrification, the process of crystallization of a formerly crystal-free, amorphous glass state, can lead to damage during the warming of cells.
Sansinena, Marina Julia   +3 more
core   +1 more source

COMPARATIVE KINETICS STUDY OF THE THERMAL AND THERMO-OXIDATIVE DEGRADATION OF A POLYSTYRENE-CLAY NANOCOMPOZITE BY TGA AND DSC [PDF]

open access: yesChemistry Journal of Moldova: General, Industrial and Ecological Chemistry, 2010
The methods of thermogravimetry (TGA) and differential scanning calorimetry (DSC) have been used to study the thermal and thermo-oxidative degradation of polystyrene (PS) and a PS-clay nanocomposite.
Ion Dranca   +3 more
doaj  

Morphological and Thermoanalytical Study of Modified Avocado Seeds Starch with Lactic Acid

open access: yesChemistry Journal of Moldova: General, Industrial and Ecological Chemistry, 2017
Avocado seeds starch was investigated after the modification with lactic acid using thermogravimetry and differential thermal analysis, differential scanning calorimetry, X-ray powder diffraction and scanning electron microscopy.
Camila Delinski Bet   +4 more
doaj   +1 more source

VARIATION IN ACTIVATION ENERGY AND NANOSCALE CHARACTERISTIC LENGTH AT THE GLASS TRANSITION [PDF]

open access: yesChemistry Journal of Moldova: General, Industrial and Ecological Chemistry, 2008
Differential scanning calorimetry has been used to study the α-relaxation (glass transition) in virgin polystyrene (PS), PS-clay nanocomposite, amorphous indomethacin (IM), maltitol (Mt) and glucose (Gl).
Ion Dranca
doaj  

Thermoanalytical Investigation of Terazosin Hydrochloride [PDF]

open access: yesAdvanced Pharmaceutical Bulletin, 2013
Purpose: Thermal analysis (TGA, DTG and DTA) and differential scanning calorimetry (DSC) have been used to study the thermal behavior of terazosin hydrochloride (TER). Methods: Thermogravimetric analysis (TGA/DTG), differential thermal analysis (DTA) and
Mona Mohamed Abdel-Moety   +1 more
doaj   +1 more source

Differential Scanning Calorimetry of Bacteria [PDF]

open access: yesMicrobiology, 1986
Thermograms obtained by differential scanning calorimetry of a range of bacteria of different heat resistances were compared. Equations were derived to calculate the rate at which the numbers of viable organisms in a calorimeter decline as the temperature is raised at a constant rate.
C A, Miles, B M, Mackey, S E, Parsons
openaire   +2 more sources

Characterization of ß-trypsin at acid pH by differential scanning calorimetry

open access: yesBrazilian Journal of Medical and Biological Research, 2003
Trypsin is a serino-protease with a polypeptide chain of 223 amino acid residues and contains six disulfide bridges. It is a globular protein with a predominance of antiparallel ß-sheet and helix in its secondary structure and has two domains with ...
E.R. Bittar   +5 more
doaj   +1 more source

Thermoreversible gelation of cellulose acetate solutions studied by differential scanning calorimetry [PDF]

open access: yes, 1986
Thermoreversible gels of cellulose acetate can be obtained by cooling concentrated cellulose acetate solutions in solvent-nonsolvent mixtures of dioxane and water.
Altena, F.W.   +3 more
core   +3 more sources

IMPLICATIONS OF GLOBAL AND LOCAL MOBILITY IN AMORPHOUS EXCIPIENTS AS DETERMINED BY DSC AND TM DSC [PDF]

open access: yesChemistry Journal of Moldova: General, Industrial and Ecological Chemistry, 2009
The paper explores the use of differential scanning calorimetry (DSC) and temperature modulated differential scanning calorimetry (TM DSC) to study α- and β- processes in amorphous sucrose and trehalose.
Ion Dranca, Tudor Lupascu
doaj  

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