| Phoenix S&T, Inc. Patent applications |
| Patent application number | Title | Published |
|---|
| 20090250607 | METHOD AND APPARATUS TO INCREASE THROUGHPUT OF LIQUID CHROMATOGRAPHY-MASS SPECTROMETRY - An apparatus according to the present invention includes a plurality of sample spraying devices, each of which connects to an LC column. The apparatus includes an electrical circuit that can turn a high voltage between 1 and 5 KV on and off on the time-scale of nanoseconds to milliseconds. The circuit is controlled by a computer program which applies the high voltage to each spray device in a Hadamard sequence. The spray devices are positioned aiming at the mass spectrometer inlet. The preferred configuration of arrangements for the spray devices are in a circle or an arc of a circle around the inlet of a mass spectrometer. | 10-08-2009 |
| 20090095057 | INTEGRATED MICROFLUIDIC NOZZLE DEVICE FOR CHROMATOGRAPHIC SAMPLE PREPARATION FOR MASS SPECTROMETRY APPLICATIONS - In accordance with one aspect of the present invention, a low-cost injection-molded plastic microfluidic device that performs the multiplexing of affinity or chromatographic sample cleanup and enrichment methods and the detection by nanospray mass spectrometry of analytes such as biomarkers in a single package to conserve sample, and processes body fluids with HPLC grade and even next-generation chromatographic resins such as nanoparticles to maximize the sensitivity of the detection. | 04-16-2009 |
| 20080203198 | APPARATUS AND METHOD FOR CONTROLLING AN ELECTROSTATICALLY INDUCED LIQUID SPRAY - A method for controlling an electrostatically induced liquid spray includes the steps of: (1) generating a liquid spray from a liquid sample with an electrostatic spray nozzle device using an applied electric field, wherein at least a nozzle portion of the spray device is formed of an insulating material; (2) sensing a current of the liquid spray with a spray current sensing means placed in relation to the spray device; (3) comparing the sensed current of the liquid spray with a pre-selected current value, with a difference between the two representing a control signal; and (4) varying the applied electric field using a computer-controlled positioning mechanism that moves the spray device relative to an inlet of the object that receives the liquid spray and acts as a counter-electrode. | 08-28-2008 |
