Thermal analysis of commercial herbicides.

Five different plant-protecting agents (herbicides) were investigated by means of simultaneous thermal analysis/mass spectrometry. The TA/MS experiments were carried out in air or argon atmosphere and the thermal analysis data are reported. The decomposition products released were identified by evaluation of the mass spectral data that were recorded simultaneously. The mass spectra obtained and the degradation pathways are discussed and compared with literature data

Simultaneous thermal analysis/mass spectrometric investigations on the thermal behaviour of noble metal complexes.

The results of investigations on the thermal behaviour of three selected noble metal complexes, performed by means of simultaneous thermal analysis/mass spectrometry are discussed. The thermal analysis data, such as the initial temperatures for the beginning of the weight loss, the amounts of the weight loss, as well as the characteristic DTG and DTA temperatures, are tabulated and the simultaneously recorded electron impact mass spectra are interpreted. The temperature-dependent formation and cleavage of typical complex-structure-related substituents is described and established by the evaluation of the course of the corresponding ion-current intensities

DSC and TA/MS studies on formation and decomposition of polychlorinated dibenzo-p-dioxines and dibenzofuranes - Fly ash as reagent and catalyst; oxidation of particulate carbon.

The effect of oxydation of particulate carbon as a part of fly ash has been studied by mean of differential scanning calorimetry (DSC) and simultaneous thermal analysis/mass spectrometry (TA/MS). The results from different carbon modifications added to fly ash were discussed and compared to those of the pure samples