Flow cell humidity sensor system

Details Flow cell humidity sensor system Flow cell humidity sensor system

2006-05-30

2006-05-30

Larkin, Daniel S. (Department: 2856)

Measuring and testing

Gas analysis

Moisture content or vapor pressure

C073S335040, C073S029050, C324S689000

Reexamination Certificate

active

07051574

ABSTRACT:
A system for monitoring water concentration in gaseous sample is disclosed. It is readily applicable in the synthesis of biopolymer arrays/microarrays involving the use of water-sensitive reagents. A flow cell is provided in which a capacitance sensor is placed separate from a production or synthesis environment. Sample and dry gas may be provided to the flow cell via conduits and valves or a manifold system. Dry gas, such as N2, is used to dry the sensor or simply to maintain it in a dried condition. The same gas may be used to drive an optional venturi pump to draw sample for measurement into the cell from the synthesis environment.

REFERENCES:
patent: 6119506 (2000-09-01), Gibson et al.
patent: 6242266 (2001-06-01), Schleifer et al.
patent: 6413783 (2002-07-01), Wohlstadter et al.
patent: 2003/0008413 (2003-01-01), Kim et al.

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