Bubble suppressing system for optical measurement cells

摘要

A method and apparatus is disclosed for suppression of bubbles in an optical measurement cell. A measurement cell is filled with a fluid sample. Valves connected through plumbing connections to the cell are operated such that any flow in and out of the cell is stopped. A pressure source is then applied through a valve and flow impedance mechanism to the liquid contained within the cell, causing any bubbles contained or generated within the cell to be dissolved back into solution or reduced in size such that optical measurements taken of the sample are more accurate and free of interference with the measurement beam and of measured stray light. Possible pressure sources include compressed gas, a piston, and a constant flow-rate pump.

主权项

1. A system to suppress bubbles within a liquid sample, contained in an optical measurement cell, comprising
A. an inlet means through which said sample may be introduced into said optical measurement cell, said means comprising, connected in series by tubing therebetween,
a. an inlet port;b. an inlet valve;c. an outlet to cell port; B. an outlet means through which said sample may exit said measurement cell and pass to waste comprising, connected in series by tubing therebetween,
a. an outlet valve;b. an outlet to waste port; C. a pressurization means, connected by tubing to said outlet means, comprising;
a. a pressurization source;b. a pressure valve; andc. a flow impedance means.