Browsing by Author "9f7b4b03-4252-4323-b671-7cde5ffae7df"
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Toledo, Carla; Valle, Luis; Narváez, Jessica; Richter Duk, Pablo (SOC BRASILEIRA QUIMICA, 2007)A rapid and simple method was developed for screening polychlorinated biphenyls in transformer oil. The method is based on liquid-liquid extraction in methanol and subsequent direct gas chromatography-mass spectrometric ...