The water samples were kept at 4 °C in EPA vials with Teflon crew cap as recommended for PAH The flow of carrier gas was set at a rate of 1.5 mL/min.
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Biogeochemistry of Caps Subject to Mixing Processes into anoxic sediments when burrows and tubes are irrigated with surface waters (43, 47).
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A sub-sample of 0.5 mL was immediately transferred into a glass vial containing 1.5 mL of 8 M NaOH solution for. 144 analysis of dissolved sulfide.
