Organic, Gas, and Element Geochemistry of Hydrothermal Fluids of the Newly Discovered Extensive Hydrothermal Area in the Wallis and Futuna Region (SW Pacific)

Table 1

Main GC analytical parameters used for calibration and analyses of hydrothermal fluid samples. Each group of compounds (n-alkanes, BTEXs, PAHs, and n-fatty acids) was analysed using separate twisters.

	n-Alkanes	BTEX & PAHs	n-Fatty acids
Oven
Initial (°C)	40	40	40
Initial (min)	1	1	1
ramp	40 to 320°C at 12°C/min	40 to 320°C at 12°C/min	40 to 320°C at 20°C/min
Final (°C)	320	320	320
Final (min)	2	2	2
Injector
(°C)	250	250	325