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The FCU has 2 possible resolutions, 9 mL and 2 mL for low and ultra-low gas measurements.
The operational principle is based on liquid displacement and buoyance. When a certain gas
volume enters the flow cell unit, the force of buoyancy leads the flow cell to open and releases
the entrapped gas (Figure 4). The system counts each flow cell opening and registers the
temperature and pressure for automatic compensation to normalise the flow rate and
volume to standard conditions.
Figure 4. 2 and 9 mL FCUs and working principle.
2.1.3 BPC Blue Anaerobic DUO
This configuration consists of two BPC Core Units, where users can measure the total gas (e.g.,
CH
+ CO
) and a gas component (e.g., CH
) from 18 samples simultaneously (Figure 5).
4
2
4
Figure 5. BPC Blue Anaerobic DUO operation divided in three stages.
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