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Heating stage spectroscopy

HEATING STAGE SPECTROSCOPY INFRARED, RAMAN, ENERGY DISPERSIVE X-RAY AND X-RAY PHOTOELECTRON SPECTROSCOPY... [Pg.171]

These specimens were then examined in a JEOL 200 CX electron microscope equipped with an environmental cell and heating stage, which allowed specimens to be heated in 1 Torr hydrogen up to 1100 K under these conditions the spatial resolution was 0.8 nm. In situ chemical analysis of the reacting specimen could be obtained using electron diffraction, energy-dispersive X-ray analysis, and electron energy loss spectroscopy. [Pg.102]

I) Analytical technique or method, occasionally unfeasible with the Involvement of an operator —this book abounds In Illustrative examples of this kind. Thus, electrothermal vaporization atomic absorption spectroscopy demands the automation of the sample thermal treatment In the graphite tube via a microprocessor programming the different heating stages involved (automation of methodology). Likewise, the use of Image detectors In spectroscopy calls for computerized data acquisition, impossible with manual operators. [Pg.4]

In Chapter 6, Frost and Kloprogge, describe the use of various heating-stages coupled with infrared, Raman, energy dispersive X-ray, or X-ray photon spectroscopy. Such techniques strongly complement the results obtained from traditional thermoanalytical techniques and enable the changes in the composition and molecular structure of minerals and materials to be obtained in situ at elevated temperatures. [Pg.8]

Thermal decomposition of weddelite by heating stage SEM and infrared emission spectroscopy (lES)... [Pg.191]

Heat of (exothermic) decomposition A single operational stage of a chemical process sequence - may be purely physical, e.g. distillation or drying A single chemical reaction stage in a process sequence US National Technical Information Service Ultraviolet spectroscopy... [Pg.2040]

Photo-oxidation leads to the formation of carbonylic products and this is classically monitored by vibrational spectroscopy. To investigate the relation between the accumulation of the oxygenated photoproducts and the change in the crystallinity of polycyclooctene, the decrease of the heat of crystallization was compared with the rise of the concentration of carbonyl function (1721 cm 1 band) as displayed in Figure 10.9. The enthalpy of crystallization falls at early stages of irradiation before significant accumulation of the carbonyl. Assuming that the decrease of the... [Pg.251]

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