Results 21 to 30 of about 113,664 (301)

Application of Solution Calorimetry to Determining the Fusion Enthalpy of an Arylaliphatic Compound at 298.15 K: n-Octadecanophenone

open access: yesLiquids, 2022
Evaluating the temperature dependence of the fusion enthalpy is no trivial task, as any compound melts at a unique temperature. At the same time, knowledge of the fusion enthalpies under some common conditions, particularly at the reference temperature ...
Mikhail I. Yagofarov   +3 more
doaj   +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

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 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  

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

Biomass pyrolysis and combustion integral and differential reaction heats with temperatures using thermogravimetric analysis/differential scanning calorimetry

open access: yes, 2015
Integral reaction heats of switchgrass, big bluestem, and corn stalks were determined using thermogravimetric analysis/differential scanning calorimetry (TGA/DSC).
Shen, Jiacheng   +3 more
core   +1 more source

PyDSC: a simple tool to treat differential scanning calorimetry data [PDF]

open access: yes, 2020
Herein, we describe an open-source, Python-based, script to treat the output of differential scanning calorimetry (DSC) experiments, called pyDSC, available free of charge for download at https://github.com/leonardo-chiappisi/pyDSC under a GNU General ...
Lazzara G.   +3 more
core   +1 more source

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