| BRUKER CHEMICAL ANALYSIS BV Patent applications |
| Patent application number | Title | Published |
|---|
| 20120125083 | Gas Chromatography With Ambient Pressure Stability Control - In a gas chromatography apparatus, a carrier gas is flowed from a carrier gas supply toward an analytical column at a carrier gas pressure. A sample is added to the carrier gas to form a sample gas. The sample gas is flowed through the analytical column to a gas detector that includes a sample gas outlet communicating with a gas buffer vessel. The carrier gas pressure is controlled relative to a buffer pressure of the gas buffer vessel. | 05-24-2012 |
| 20110016951 | METHOD AND APPARATUS FOR THE CONTROL OF GAS PRESSURE IN GAS CHROMATOGRAPHY COLUMNS - The pressure of a carrier gas entering a gas chromatography (GC) column is controlled by increasing or decreasing the gas pressure over a pressure change cycle by which a desired gas pressure is obtained while avoiding pressure pulses in the column. The pressure change cycle may follow a function that dictates the rate of pressure change. A gas flow controller that controls the gas pressure at the inlet or head of the column may be operated to implement the pressure change cycle. The gas flow controller may be controlled by an electronic controller. | 01-27-2011 |
