Authors:Edward Mikuli, Marta Liszka-Skoczylas, Joanna Hetmańczyk, and Janusz Szklarzewicz
analysis of [Mn(NH 3 ) 6 ](NO 3 ) 2 was undertaken using the X-ray powder diffraction (XRPD) method. The XRPD data were collected with a PANalytical X’Pert PRO powder diffractometer (operating in Bragg–Brentano geometry). The measurements continued for 2 h
Authors:M. Ivanov, A. Shmakov, V. Drebushchak, and O. Podyacheva
Perovskite SrCo0.6Fe0.2Nb0.2O3-z attracts attention as a promising material with high oxygen conductivity. The sample was investigated by means of high-temperature
X-ray powder diffraction and thermogravimetry. Phase transition was detected near 400 °C and accompanied with significant
mass loss. The phase transition affects oxygen mobility, important for the synthesis of oxygen permeable membranes. The unit
cell parameters are proved to change with temperature after two effects (1) reversible conventional thermal expansion and
(2) irreversible contraction-expansion due to the changes in the oxygen content. In situ high-temperature X-ray diffraction
experiments allowed us to separate the contributions and to measure them as a function of temperature.
Authors:Rabia Nazir, Muhammad Mazhar, Tehmina Wakeel, Muhammad J. Akhtar, Muhammad Siddique, Muhammad Nadeem, Nawazish A. Khan, and Muhammad R. Shah
The residual shiny black mass obtained after the thermal decomposition of [Fe(bipy) 3 ]Cl 2 was subjected to elemental analysis, EDXRF, XRPD, AFM, TEM, and 57 Fe Mössbauer spectroscopy for its characterization. CHN analysis showed little
Authors:Miha Vivoda, Robert Roškar, and Vojko Kmetec
a highly crystalline drug is of great importance, concerning drug quality and performance.
Higher sensitivity of isothermal microcalorimetry (IMC), compared to analytical techniques, such as X-ray powder diffraction (XRPD) and differential
Authors:Bogdan Tiţa, Adriana Fuliaş, Zoltan Szabadai, Gerlinde Rusu, Geza Bandur, and Dumitru Tiţa
The purpose of this article is to evaluate the compatibility of IB with common pharmaceutical excipients, used in the solid dosage form, by TA, Fourier transformed infrared (FT-IR) and X-ray powder diffraction patterns (XRPD
Authors:Devendra Singh, M. S. M. Rawat, Ajay Semalty, and Mona Semalty
-chemical parameters like drug content, chemical interaction (FT-IR, 1 H-NMR), thermal behavior (DSC), crystallinity (X-RPD), surface morphology (SEM), and solubility and dissolution study.
Materials and methods
The mixed zirconium, titanium, hafnium and first-row transition metal oxides (containing phosphorous oxide) were prepared
using ion exchange method followed by calcinations at 1020 K during 12 h. The resulted mixed oxides were identified by XRPD
method and studied their thermal behaviour by TG-DTA analysis. As a result of thermal analysis there were found one exothermic
(with a peak at about 950 K), and one endothermic (with a peak at about 1300 K) processes, both without mass loss. The observation
was valid for all investigated samples.
The analysis of XRPD patterns of the investigated samples showed well-defined crystal phases characteristic of each oxide.
The XRPD analysis also verified the phase transition of tetravalent metal oxides from orthorhombic to tetragonal, observed
by DTA analysis.