Ecological study of the Amoco Cadiz oil spill : report of the NOAA-CNEXO Joint Scientific Commission ecologicalstudyo00noaa Year: 1982 sample 1 - extraction (toluene methanol-soxhlet) 2 - pentane, water + sodium chlorida weight before saponification AVSP saponification with KOH weight after saponification APSP separation with SEP PAK hexane elution chloroform elution fraction hydrocarbons. FA polar fraction FB Each fraction was weighted by gravimetry (Balance: Perkin Elmer AD2Z, 1/10 of ug) . In each case, the fraction FA was chromatographed on a capillary column (OV1 or SE52) with a Gird
Ecological study of the Amoco Cadiz oil spill : report of the NOAA-CNEXO Joint Scientific Commission ecologicalstudyo00noaa Year: 1982 sample 1 - extraction (toluene methanol-soxhlet) 2 - pentane, water + sodium chlorida weight before saponification AVSP saponification with KOH weight after saponification APSP separation with SEP PAK hexane elution chloroform elution fraction hydrocarbons. FA polar fraction FB Each fraction was weighted by gravimetry (Balance: Perkin Elmer AD2Z, 1/10 of ug) . In each case, the fraction FA was chromatographed on a capillary column (OV1 or SE52) with a Girdel or a Carlo Erba Fractovap 4160. The fractions FA and FB were also analyzed by high-pressure liquid chromatograph (column RP 18, radial pressure, Waters-type detector). Since the FA fraction may contain saturated, unsaturated, or aromatic hydrocarbons, fluorescence spectrometry (Perkin Elmer 3000) was used especially during the 1980 survey when biodegradation rates were higher. Infrared spectroscopy (Perkin Elmer 125 and 225) was also used systematically to show the absence of carbonyl functions on the FA fractions. .During the 1980 campaign, it appeared that some of the chromatograms of the FA fractions were not sufficiently resolved due to the absence of saturated hydrocarbons. However, as they represented a substantial weight (A. * 257 g; A, â 14 g) , NMR spectroscopy (C 13 and proton 250 Mz Cameca) was used to denote the presence of heavy-weight compounds with fused 103
Size: 2733px × 732px
Photo credit: © Bookend / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: archive, book, drawing, historical, history, illustration, image, page, picture, print, reference, vintage
