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Figure 11 | Geochemical Transactions

Figure 11

From: Characterisation of dissolved organic compounds in hydrothermal fluids by stir bar sorptive extraction - gas chomatography - mass spectrometry. Case study: the Rainbow field (36°N, Mid-Atlantic Ridge)

Figure 11

Representative TIC trace of the SBSE-TD-GC-MS analysis of 2000 m deep seawater in the neighbourhood of the Rainbow hydrothermal field. This particular sample was collected in 2007 at a depth of 2291 m. Major contaminants are: (a) toluene; (b) benzene; chloro-; (c) oxime, methoxyphenyl; (d) benzene, 1,x-dichloro; (e) octane, 1-chloro; (f) siloxane; (g) decane, 1-chloro; (h) naphthalene, 2-chloro; (i) siloxane; (k) diethylphthalate; (k’) phthalates. Peaks highlighted in grey are the Twister® characteristic peaks. Numbers stand for the carbonated chain lenght of n-alkanes (full squares) and n-carboxylic acids (full triangles). N is short for Naphthalene.

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