LOS GATOS RESEARCH Patent applications |
Patent application number | Title | Published |
20140319352 | LONG-PATH INFRARED SPECTROMETER - A tunable mid-infrared laser operated in a pulsed mode is coupled off-axis into a high-finesse optical cavity to produce a long-path spectrometer. The cavity receives a gas sample. Laser pulses may be wavelength-scanned by stepping an external grating, allowing the grating to mechanically settle, then measuring the ring-down with a set of laser pulses, before moving on the next wavelength. A detector receiving infrared light exiting the cavity supplies a cavity ring-down trace representative of sample absorption of the infrared pulses. A processor determines an absolute absorption spectrum of the gas sample from the ring-down trace and analyzes sample gas composition and trace concentration from that spectrum. The absorption baseline is highly reproducible and stable, improving the accuracy of multivariate fits, and the spectral resolution can be better than 0.001 cm | 10-30-2014 |
20130040393 | FLUORESCENCE DYE TAGGING SCHEME FOR MERCURY QUANTIFICATION AND SPECIATION - A fluorescent dye or fluorophore capable of forming complexes with mercury comprises 6,8-difluoro-7-hydroxy-2-oxo-2H-chromene-3-carboxylate amide, wherein the amide is formed by reacting the succinimidyl ester (Pacific Blue™) with an amino acid containing a thiol group, such as cysteine or glutathione. Mercury complexes of the fluorophore fluoresce when excited by a UV or violet laser diode, and the detected intensity can be calibrated to quantify the concentration of mercury in a sample reacted with the fluorophore. | 02-14-2013 |
20130027705 | TRIPLE ISOTOPE METHOD AND ANALYZER FOR TOTAL ENERGY EXPENDITURE MEASUREMENTS - A method of measuring energy expenditure in a living subject comprises: (a) administering a specified dose of doubly-labeled water ( | 01-31-2013 |
20120021526 | METHOD FOR ANALYSIS OF ISOTOPES IN BODILY FLUIDS - Biological fluid samples containing proteins (e.g., blood plasma or saliva) are prepared for isotopic analysis by precipitating the proteins while leaving the isotopic ratio unaffected. This precipitation can involve adding metal ions, salts, organic solvents, or organic polymers. The sample is then centrifuged to allow transfer of the supernatant for isotopic analysis, e.g. by tunable diode laser absorption spectrometry to obtain a quantitative measure of the | 01-26-2012 |