Spme Extraction of the Pcb’s Containing Transformer Oils
نویسندگان
چکیده
Lucrarea prezintă o metodă de determinare de înaltă rezoluţie a bifenililor policloruraţi, utilizaţi ca aditivi ai uleiurilor de transformator, cunoscute drept matrici complexe. Metoda analitică este reprezentată de tehnica GC-MS. În vederea creşterii performanţelor analitice privind detecţia şi separarea compuşilor de interes s-a propus o metodă de preconcentrare bazată pe microextracţia în fază solidă, urmată de purificarea prin adsorbţie pe fluorisil. S-a demonstrat că metoda propusă este mai rapidă, mai eficientă şi versatilă în comparaţie cu alte procedee.
منابع مشابه
Screening of the profiles of the essential oils from the aerial parts of Nepeta racemosa using classical and microwave-based methods: Comparison with the volatiles using headspace solid-phase micro-extraction
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