An open-framework indium selenide, [C7H10N][In9Se14], has been prepared under solvothermal conditions in the presence of 3,5-dimethylpyridine and characterized by single-crystal X-ray diffraction, thermogravimetry, elemental analysis, Fourier tranform IR spectroscopy, and UV-vis diffuse reflectance. The crystal structure of [C7H10N][In9Se14] contains an unusual building unit, in which corner- a...

The morphological and compositional characterization of the filler particles in selected dental composites has been accomplished by a combination of backscattered elec tron imaging, digital imaging , energy dispersive X-ray analysis and thermogravimetry. Backscattered electron images provide excellent composition contrast between the filler and the matrix in this analysis . Qualitative energy d...

In this study, isolation of ferulic acid from Parthenium hysterophorus L. followed by the structural characterization using elemental analysis, FT-IR, NMR, ESI-MS and XRD has been carried out. The molecular geometry, harmonic vibrational frequencies and structural parameters were computed by density functional theory with the 6-311G** basis set. Comparisons between experimental and simulated da...

Permeation tubes are convenient analyte sources for generating standard gas mixtures (containing, in particular, volatile organic compounds) used in the calibration of analytical instruments. For small permeation rates, corresponding to trace levels of analytes, the calibration of permeation tubes is time-consuming. The use of thermogravimetry as a means to measure rapidly the weight loss at co...

Four different coals were studied using a combination of T2, T1, FID and solid echoes measurements on saturated plugs and degassed cuttings. These measurements were performed on two NMR spectrometers working at a proton Larmor frequency of 2 and 23 MHz. The measurements on saturated plugs allow the characterization of the cleats, and the measurements on degassed cuttings allow the characterisat...

Structural and surface properties of chromatographic porous silica, alumina, titania and zirconia were studied using thermogravimetry and nitrogen adsorption. The samples studied are mesoporous and exhibit relatively narrow pore size distributions in the range from 10 to 30 nm, making them suitable for chromatographic applications. Low-pressure nitrogen adsorption and thermogravimetry were used...

BACKGROUND The possibility of applying a novel chemometric approach which could allow the differentiation of marble samples, all from different quarries located in the Mediterranean basin and frequently used in ancient times for artistic purposes, was investigated. By suggesting tentative or allowing to rule out unlikely attributions, this kind of differentiation could, indeed, be of valuable s...

Solid-state M-4-MeO-Bz compounds, where M stands for trivalent La, Ce, Pr, Nd and Sm and 4-MeO-Bz is 4-methoxybenzoate, have been synthesized. Simultaneous thermogravimetry and differential thermal analysis (TG-DTA), differential scanning calorimetry (DSC), X-ray powder diffractometry, infrared spectroscopy and complexometry were used to characterize and to study the thermal behaviour of these ...