نتایج جستجو برای: ionisation
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We present HST/STIS (1160–1700Å) echelle spectra of the cataclysmic variable (CV) star, QU Car, at three epochs. In catalogues this binary is classified as a nova-like variable. QU Car was observed three times in time-tag mode for 2300 sec, 2600 sec and 2600 sec, allowing us to study the spectral time evolution on timescales down to ∼10 sec. We find evidence of a high-state non-magnetic CV at l...
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The gas phase reaction of trimethylgallium (TMG) with ammonia was investigated because of its importance in the GaN chemical vapour deposition process. Water is the most important impurity in ammonia and therefore its reaction with TMG was investigated as a source of oxygen impurities in GaN Ðlms. Gas phase intermediates were studied in a Ñow tube reactor in the temperature range 294 to 1000 K ...
The aim of this work was to develop a reliable and efficient analytical method to characterise and differentiate saxitoxin analogues (STX), including sulphated (gonyautoxins, GTX) and non-sulphated analogues. For this purpose, hydrophilic interaction liquid chromatography (HILIC) was used to separate sulphated analogues. We also resorted to ion mobility spectrometry to differentiate the STX ana...
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