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| Number | Title | Issue Date |
| 8187890 | Rapid sensing of toxic metals with hybrid inorganic materials Methods for rapid sensing of dissolved toxic heavy metals use a hybrid inorganic material (“HIM”), which is synthesized from hydrated iron oxide (“HFO”) and calcium magnesium silicate. HIM thus synthesized is used in sensing dissolved toxic heavy metals. Wat... | 05/29/2012 |
| 8101415 | Calibration system for use with lateral flow assay test strips A method of adjusting a final signal value measured on a lateral flow assay test strip, by: identifying a pre-determined calibration method for the test strip, wherein the pre-determined calibration method corresponds to the manufacturing lot from which the test str... | 01/24/2012 |
| 8071387 | Electrodeposition baths, systems and methods Electrodeposition baths, systems and methods are provided. In some embodiments, the baths, systems and methods are used to deposit metal alloy coatings. ... | 12/06/2011 |
| 8034621 | Chemical sensors of zinc, nickel, and copper ions The present technology provides a dual chemical sensor for zinc and nickel ions and a chemical sensor for copper ions. Also provided are methods of making and using the chemical sensors. The chemical sensors have the structure of formula I, wherein R1, an... | 10/11/2011 |
| 7951600 | Electrodeposition baths, systems and methods Electrodeposition baths, systems and methods are provided. In some embodiments, the baths, systems and methods are used to deposit metal alloy coatings. ... | 05/31/2011 |
| 7820448 | Waste materials sampling, assaying for desired components or metals, and refining A bulk sample is fed with a liquid into a mixing tank (1) where it is stirred to form a dispersion. A proportion of the dispersion is recycled from the bottom of the tank through a line to the top of the tank so that at least the dispersion in the recycle loo... | 10/26/2010 |
| 7648839 | Metal indicator To provide a novel copper ion indicator which is less influenced by interfering metal ions and which is useful for measurement of copper ion within a wide concentration range. The invention provides a copper ion indicator containing a compound represented by ... | 01/19/2010 |
| 7601541 | Method for detecting Cu concentration of silicon substrate To expediently and quantitatively estimate Cu within a silicon substrate without fully dissolving the silicon substrate and to ascertain the process contamination, there is provided a method for quantitatively determining the Cu concentration in a Cu containing sili... | 10/13/2009 |
| 7452728 | Metal ion separation from aqueous solutions using photoswitchable ionophores Methods and systems for the concentration and removal of metal ions from aqueous solutions are described, comprising treating the aqueous solutions with photoswitchable ionophores. ... | 11/18/2008 |
| 7439070 | Waste material handling, sampling and metal content value calculation A bulk sample is fed with a liquid into a mixing tank (1) where it is stirred to form a dispersion. A proportion of the dispersion is recycled from the bottom of the tank through a line to the top of the tank so that at least the dispersion in the recycle loo... | 10/21/2008 |
| 7399639 | Sensors, and methods of making and using the same The present invention is directed, in part, to sensors for detecting metal ions, and methods of making and using the same. ... | 07/15/2008 |
| 7378281 | Process to measure PPB levels of dissolved copper in jet fuels and other non-aqueous fluids using a colorimetric process A method of measuring the concentration of metal ions in a sample comprising the steps of: providing a sample comprising a nonpolar, liquid hydrocarbon, suspected of containing a metal ion; adding a dye such as a spirobenzopyran dye or bathocuproine and a reducing a... | 05/27/2008 |
| 7354733 | Method for sorting and separating living cells We disclose methods of sorting or separating mixtures of living cells (e.g., eukaryotic, prokaryotic, mammalian, pathogenic, bacterial, viral, etc.). We perform our methods by activating cell-selective photophoric labels, which photosensitize and chemically reduce a... | 04/08/2008 |
| 7344895 | Production and use of in situ-modified nanoparticles A process for synthesizing nanoparticles, in particular metal salt nanoparticles. To the synthesis mixture is added a modifying reagent which binds, by means of a first functional group, to the nanoparticle surface and which carries a second functional group for bin... | 03/18/2008 |
| 7312083 | Control value assignment method A method of assigning expected recovery values to control substances used in analytical testing is disclosed. ... | 12/25/2007 |
| 7297547 | Analysis of metals in acidic solutions In one embodiment, a method of neutralizing the matrix of an acidic solution including at least one metal using a weak anion exchange resin is provided. The method includes the acts of: activating the weak anion exchange resin with a weakly acidic metal complexing r... | 11/20/2007 |
| 7285246 | Hand-held fluid analyzer A hand-held device detects the presence of a preselected substance in the breath. A deformable housing forms a test chamber for interacting an indicator reagent with the breath. An ampoule positioned inside the housing is ruptured by manual pressure through the wall... | 10/23/2007 |
| 7247489 | Ion-detecting microspheres and methods of use thereof This invention provides methods of using ion-detecting microspheres containing an ionphore and a chromoionphore in clinical laboratory instrumentation such as flow cytometry for sample analysis. In one embodiment, the microspheres are contacted with a flowing stream... | 07/24/2007 |
| 7226563 | Ion-detecting sensors comprising plasticizer-free copolymers Plasticizer-free ion-detecting sensors for detecting a target ion in a sample are provided. The sensor comprises a plasticizer-free copolymer comprised of polymerized units of methacrylate monomers and a polymerizable ion exchanger, wherein the methacrylated monomer... | 06/05/2007 |
| 7220383 | Method and instrument for automated analysis of fluid-based processing systems An analytical apparatus to monitor fluid systems has at least one extraction module having a raw-sample reservoir connected by input fluid conduit to individual ones of said fluid systems, to extract raw samples for analysis from said fluid systems, one or more modi... | 05/22/2007 |
| 7208121 | Plasticizer-free-ion-detective sensors A plasticizer-free ion detective sensor for detecting a target ion in a sample is provided. The sensor comprises a copolymer of methacrylate monomers with pendant alkyl groups of different length, and an ionophore for detecting the target ion. The copolymer matrix o... | 04/24/2007 |
| 7205153 | Analytical reagent for acid copper sulfate solutions Embodiments of the invention provide an analytical method and analytical reagent solutions for determining the concentration of electrolyte components, such as copper, acid and chloride constituents in an acid or basic metal plating bath using a chemical analyzer. C... | 04/17/2007 |
| 7201876 | Ion-detecting sensors comprising plasticizer-free copolymers Ion-detecting sensors for detecting a target ion in a sample are provided. The sensor comprises a plasticizer-free copolymer comprised of polymerized units of methacrylate monomers having pendent alkyl groups of different length and a functionalized ionophore of sai... | 04/10/2007 |
| 7192778 | Surface enhanced spectroscopy-active composite nanoparticles Metal nanoparticles associated with a spectroscopy-active (e.g., Raman-active) analyte and surrounded by an encapsulant are useful as sensitive optical tags detectable by surface-enhanced spectroscopy (e.g., surface-enhanced Raman spectroscopy). ... | 03/20/2007 |
| 7144738 | Materials for enhancing staining of biopolymers in matrices Methods for detecting biopolymers such as proteins, peptides, and nucleic acids in a matrix are provided, in which the methods include contacting the matrix with a sensitizing reagent that includes a substituted heteroaromatic compound; contacting the matrix with a ... | 12/05/2006 |
| 7108833 | Sample tab A sample tab for retaining a sample during spectroscopic analysis includes a base plate, a sample well, and a cover plate. The sample well may vary in size to accommodate different sample volumes, and the base of the sample well may be positioned above or below the ... | 09/19/2006 |
| 6933153 | Metal ion specific capacity affinity sensor This invention relates to a metal ion specific capacitance sensor with exceptional sensitivity and wide operating range. It is versatile because different kinds of recognition elements can be immobilized directly in a self-assembling monolayer substantially complete... | 08/23/2005 |
| 6878551 | Materials for enhancing staining of biopolymers in matrices The present invention relates to a method for detecting biopolymers in a matrix, which includes contacting the matrix with a sensitizing reagent including on one or more optionally substituted heteroaromatic compounds; contacting the matrix with one or more reduceab... | 04/12/2005 |
| 6875254 | Methods for detecting and extracting gold Methods for detecting gold and quantitating gold in ore samples utilizing a gold-specific protein are provided, including methods for multiple sample handling. Also provided are methods for extracting gold from mineral suspensions utilizing a magnetic mineral bindin... | 04/05/2005 |
| 6875615 | Sensors for the determination of organometallic compounds The present invention relates to sensors for the determination of organometallic compounds comprising the following elements: a) an inorganic, organic or polymeric support, insoluble in the sample to analyze b) an indicator which reversibly reacts with... | 04/05/2005 |
| 6872573 | Fluorescent creatinine assay A method of detecting creatinine in body fluids using an indicator which produces a fluorescent response when oxidized in the presence of a copperII/creatinine complex. A preferred indicator is 4-(1-methylhydrazino)-7-nitro benzooxadiazole (MNBDH). ... | 03/29/2005 |
| 6833275 | Gold conjugates containing detergent A composition which contains stabilized conjugates composed of colloidal particles and biomolecules is obtained by adding a detergent to a solution containing biomolecules before or/and during treatment of colloidal particles with this solution. ... | 12/21/2004 |
| 6833273 | Method for evaluating concentration of metallic impurities in silicon wafer A method for evaluating concentration of metal impurities contained in a silicon wafer, which comprises dropping concentrated sulfuric acid onto a surface of the silicon wafer to extract metal impurities solid-solubilized in the inside of the silicon wafer into the ... | 12/21/2004 |
| 6821786 | Diagnostic test for elemental imbalances A self-diagnostic test, a self-diagnostic test apparatus, and method of manufacturing a self-diagnostic test for screening for elemental mineral imbalances in a patient utilizing an analysis of the reaction of mineral specific reagents to a sample from a patient are... | 11/23/2004 |
| 6800489 | Electrospray tandem mass spectrometry of transition metal diimine complexes of amino acids, α-hydroxyketones and hexose phosphates for newborn screening Tandem mass spectrometry (MS/MS) has been used extensively for solving various biological problems, such as structure identification of oligopeptides, nucleic acids, and nucleotides. One of the main advances of MS/MS is that it lends itself to the quantitative and q... | 10/05/2004 |
| 6773926 | Nanoparticle-based sensors for detecting analytes in fluids Sensors, sensor arrays and sensing methods provide for detection of a chemical analyte in a fluid. Sensors include a plurality of conductive and nonconductive regions in contact with a measuring apparatus. One or more sensors include a plurality of particles that in... | 08/10/2004 |
| 6686202 | Methods for detecting and extracting gold Methods for detecting gold and quantitating gold in ore samples utilizing a gold-specific protein are provided, including methods for multiple sample handling. Also provided are methods for extracting gold from mineral suspensions utilizing a magnetic min... | 02/03/2004 |
| 6682934 | Automated airborne metal analyzer A portable instrument for automatic collection and analysis of airborne lead concentrations in ambient air environments. Its improvements to the art of airborne lead detection and analysis permit the apparatus to analyze samples previously collected by pe... | 01/27/2004 |
| 6645768 | Reagent and kit for determining global coagulability and hemostatic potential A reagent and kit are disclosed for determining if a patient is hypercoagulable, hypocoagulable or normal. The test involves providing a test sample from the patient and initiating coagulation in the sample in the presence of an activator, which is added ... | 11/11/2003 |
| 6638711 | Methods for identifying an agent that inhibits oxygen-dependent hydrogen peroxide formation activity but does not inhibit superoxide-dependent hydrogen peroxide formation The invention relates to methods for identifying candidate pharmacological agents to be used in the treatment and/or prevention of Alzheimer's disease and/or related pathological conditions.... | 10/28/2003 |
