Patent application number | Description | Published |
20090114090 | ADSORPTIVE GAS SAMPLER USING IONIC NANO-DROPLETS - A gas sampling canister has an electrospray nozzle for creating an ionic fluid electrospray plume. A gas sample is intake positioned to provide a gas sample flowing through the ionic fluid electrospray plume. A cooled counter electrode is positioned to collect the electrospray plume such that selected chemicals in the gas sample are captured by ionic fluid accumulating on the cooled counter electrode. A system and method for sampling gas are also described. | 05-07-2009 |
20090235817 | ADSORPTIVE GAS SAMPLER USING IONIC NANO-DROPLETS - An air scrubber, system, and method of use are provided. The air scrubber includes an electrospray nozzle for creating an ionic fluid electrospray plume; an air sample intake positioned to provide an air sample interacting with the ionic fluid electrospray plume; and a counter electrode positioned to collect the electrospray plume. The selected chemicals in the air sample are captured by ionic fluid electrospray plume and accumulate on the counter electrode. | 09-24-2009 |
20090246883 | Paper Tapes Sensitive To Multiple Gases - A sampling tape carries a plurality of elongated, spaced apart, gas sensitive regions which respond to different toxic gases. The regions can be in the form of elongated tracks which can be scanned simultaneously at multiple locations. A group of scanning locations along a track can provide sample signals for a selected gas from a plurality of locations. Signals from another track can relate to a different gas. | 10-01-2009 |
20090311804 | MAGNETIC BEAD ASSISTED SAMPLE CONDITIONING SYSTEM - A magnetic bead assisted sampling system for a fluid sensor. Magnetic beads are dispersed in a sampling volume for collecting the analyte. The beads are packed into a small volume for pre-concentration of the analyte. A solvent may be applied to the beads to elute the analyte from the beads for movement to an analyzer. | 12-17-2009 |
20100019139 | MICRO DISCHARGE DEVICE IONIZER AND METHOD OF FABRICATING THE SAME - A micro discharge device (MDD) ionizer and a method for fabricating the MDD ionizer are disclosed. The MDD ionizer includes a dielectric barrier having a first open end connected to an electrically conductive capillary tube and a second open end connected to a sample collection capillary tube. A circular high voltage electrode can be positioned around the dielectric barrier in close linear proximity to the conductive capillary tube and sealed by a non-conductive epoxy. A plasma discharge can be formed in a flow path through the dielectric barrier when an AC potential is applied between the high voltage electrode and the electrically conductive capillary tube utilizing an electronic controller. Such a plasma discharge in the flow path of the sample achieves soft ionization of gaseous sample molecules. The high pressure region generally occurs in the plasma region (where the ionization occurs). The ions thus are drawn (i.e., pushed or pulled) toward the high vacuum region located downstream where the detector(s) can be located. | 01-28-2010 |
20100045159 | MICRO DISCHARGE DEVICE CAPABLE OF LOW VOLTAGE DISCHARGES IN A VARIETY OF CARRIER GASES FOR DETECTION AND/OR IONIZATION - A micro discharge device (MDD) capable of low voltage discharges in a variety of carrier gases for detection and/or ionization includes a sample introduction capillary having a first open end connected to a gas system and a second open end connected to a cylinder comprising a high dielectric constant material. A high voltage electrode can be placed in close proximity to the outer diameter of the cylinder and at a close linear distance to the second open end of the sample introduction capillary. A region can be formed inside the cylinder between the second end of the sample introduction capillary and the high voltage electrode wherein discharge can be located. An optical emission collector can be located through the flow manifold to a receiving location near the high voltage electrode within a region from inside the cylinder between the high voltage electrode and the manifold. | 02-25-2010 |
20100101301 | GAS PULSE GENERATOR FOR BASELINE DRIFT CORRECTION AND RELATED SYSTEM AND METHOD - A method includes acquiring a chemical sample and modulating the chemical sample at a frequency greater than a drift frequency of a sensor. The method also includes determining at least one of a presence and a concentration of the analyte within the modulated chemical sample using the sensor. Modulating the chemical sample could include alternately absorbing at least some of the analyte into a sorbent material and releasing at least some of the analyte from the sorbent material. Modulating the chemical sample could also include heating the sorbent material, absorbing part of the analyte into the sorbent material, and passing a remaining portion of the analyte into the sensor. Modulating the chemical sample could further include stopping the heating of the sorbent material, releasing the part of the analyte from the sorbent material, and passing the sample with the released part of the analyte into the sensor. | 04-29-2010 |
20110247394 | SEGREGATION SYSTEM FOR FLUID ANALYSIS - An approach for analyzing fluid samples. The approach provides for segregating a sample into groups of analytes in a sample before being passed on to an analyzer such as a detector or separator. The sample may be run through a number of collectors connected in series each of which may adsorb analytes having a certain property which is different from a property of any of the other collectors in the series. After the adsorption of analytes, the collectors may be reconnected by a valve or fluid control mechanism from their series connection to a parallel connection to their respective analyzers. The analytes may be desorbed into a pulse in each of the collectors, which goes to the respective analyzer. | 10-13-2011 |
20120017759 | ULTRASOUND-ASSISTED ELECTROSPRAY IONIC LIQUID FOR CARBON DIOXIDE CAPTURE - A system includes an ultrasound wave generator, a fluid cavity coupled to the ultrasound wave generator, an array of micro-machined ultrasonic-assisted electrospray nozzles coupled to the fluid cavity, an electrode configured to impart a charge onto the fluid output of the electrospray nozzles, and a carbon dioxide release unit configured to receive the ionic liquid after absorption of carbon dioxide by the ionic liquid and to remove carbon dioxide from the ionic liquid such that the regenerated ionic liquid can be recycled for additional carbon dioxide capture. | 01-26-2012 |