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A metering valve assembly for use in an analytical system includes fixed and movable valve members that have slidably engaged faces. One valve member includes a first metering chamber in the form of a through passage having an axis perpendicular to the direction of relative valve motion and a second

A metering valve assembly for use in an analytical system includes fixed and movable valve members that have slidably engaged faces. One valve member includes a first metering chamber in the form of a through passage having an axis perpendicular to the direction of relative valve motion and a second metering chamber of elongated shape that has a length at least three times its width and that extends along the direction of relative valve motion. In a first position, the metering chambers are connected in series with a source of the sample liquid to be analyzed; and in a second valve assembly position, the first metering chamber is connected in series between a source of auxiliary fluid and a first analysis unit and the second metering chamber is concurrently connected in series between a source of auxiliary fluid and a second analysis unit.

대표청구항 ▼

A metering valve assembly for use in an analytical system comprising a fixed valve member and a movable valve member, said valve members having slidably engaged faces, one of said valve members including a first metering chamber in the form of a through passage having an axis perpendicular to the di

A metering valve assembly for use in an analytical system comprising a fixed valve member and a movable valve member, said valve members having slidably engaged faces, one of said valve members including a first metering chamber in the form of a through passage having an axis perpendicular to the direction of relative valve member movement and a second metering chamber in the form of an elongated channel having a length at least three times its width and disposed along the direction of relative valve member movement, said metering chambers being connected in series for serial receipt of sample liquid to be analyzed in a first valve position, and said first metering chamber being connected in series between a source of auxiliary fluid and a first analysis unit and said second metering chamber being concurrently connected in series between a source of auxiliary fluid and a second analysis unit in a second valve position.