A DEVICE AND METHOD FOR ANALYZING LIGHT CHEMICAL COMPOUNDS

摘要

An analyzing device to analyze light chemical compounds comprises: - an injector (3) to inject a fluid sample from a flow-line (1) in the analyzing device, - a low pressure chamber (4) comprising a low pressure piston (5), the low pressure chamber (4) receiving the fluid sample from the injector (3), - an analyzing sensor 7 coupled to a plurality of control sensors (8, 9), and receiving the fluid sample from the low pressure chamber (4), - a high pressure chamber (11) comprising a high pressure piston (12), the high pressure chamber (11) receiving the fluid sample from the analyzing sensor (7), and - a controller (14) receiving measurements from the analyzing sensor (7), the control sensor (8, 9) and commanding operations of the injector (3), the low pressure piston (5), and the high pressure piston (12) such that the low pressure piston (5) pushes the fluid sample toward the analyzing sensor (7) in sweeping a determined pressure range encompassing an optimal pressure, the high pressure piston (12) pushes the fluid sample back to the flow line (1) after the fluid sample has been transferred to the high pressure chamber (11).