Class / Patent application number | Description | Number of patent applications / Date published |
436072000 | SILICON CONTAINING | 14 |
20090130767 | ORGANOSILANES AND SUBSTRATES COVALENTLY BONDED WITH SAME AND METHODS FOR SYNTHESIS AND USE - The present invention provides novel silicon compounds, methods for making these novel silicon compounds, compositions comprising these novel silicon compounds attached to substrates, methods for attaching the novel silicon compounds to substrates and methods for using the compositions in a variety of chromatographic applications. | 05-21-2009 |
20100041157 | Analysis apparatus and analysis method of chlorosilanes - The problem to be solved is to provide an analysis apparatus and analysis method of chlorosilanes capable of stably carrying out an analysis with less contamination. An analysis apparatus of chlorosilanes includes a vaporizer | 02-18-2010 |
20100273266 | TARGET BIOMATERIAL DETECTING KIT AND METHOD OF DETECTING TARGET BIOMATERIAL - Provided are a target biomaterial detecting kit and a method of detecting the target biomaterial. The target biomaterial detecting kit includes a guided mode resonance filter comprising a substrate transmitting or reflecting light, a grating layer formed on the substrate, and a capture layer formed on the grating layer to capture a target biomaterial; and a nano complex comprising a nanoparticle head and a connection tail. Therefore, the wavelength peak of a reflection/transmission spectrum of light coming from the guided mode resonance filter can be largely shifted, and thus the presence and quantity of a target biomaterial can be easily detected. Moreover, although the amount of the target biomaterial is small, the target biomaterial can be reliably detected. | 10-28-2010 |
20120164738 | DETECTION OF SMALL LIGANDS WITH METMYOGLOBIN - The invention relates to methods and compositions for the rapid detection of small ligands, such as cyanide, carbon monoxide or azide, in small quantities. Specifically, metmyoglobin is used to bind small ligands which yield a product with a characteristic absorbance spectrum that is detectable and quantifiable. Also disclosed is a kit for detecting small ligands with metmyoglobin, which is portable and provides for practice of the invention without the use of harsh solvents or chemical reagents. | 06-28-2012 |
20130260468 | METHODS FOR THE ANALYSIS OF LIQUID HALOSILANES - Methods for the direct analysis of liquid halosilanes. In particular, methods for using graphite furnace atomic absorption (GFAA) spectrometric analysis to evaluate the purity of liquid halosilanes by identifying and quantitatively measuring trace elements or impurities, such as, but not limited to metal species that may be present in liquid halosilanes. | 10-03-2013 |
20130337568 | METHOD TO MEASURE SURFACTANT IN FLUID - The invention is directed towards methods and compositions for identifying the presence of surfactants in water. The invention is quite superior over the prior art because it can form a colorful complex in half the time, avoid the need for difficult separation steps, use a safer solvent and avoid the formation of messy foam. The invention involves adding to the water a cobalt thiocyanate reagent, pre-prepared from a cobalt salt and a thiocyanate salt, which forms a colorful complex with the surfactant. Chloroform is then added to the water. The cobalt reagent causes the virtually all of the surfactant to form a colored complex which rapidly migrates into the chloroform and prevents the surfactant from foaming. Once in the chloroform, a UV-vis spectrometer can easily and precisely identify the type and amount of surfactant that was in the water. | 12-19-2013 |
20140120627 | METHOD FOR LABELING NANOCLAY FOR TRACKING THEM WITHIN DIFFERENT SOLID AND LIQUID MATERIAL - A method of monitoring a location of a nanoparticle within a material is described herein. The method includes the steps of providing at least one nanoclay particle, attaching a fluorescent tag to the at least one nanoclay particle, and determining a fluorescence of the fluorescent-labeled nanoclay particle. The method also includes forming the material including the at least one fluorescent-labeled nanoclay particle, depositing the material in an aqueous solution, and detecting a movement of the fluorescent-labeled nanoclay particle from the material to the aqueous solution. | 05-01-2014 |
20140154811 | GAS DETECTION DEVICE WITH GRAPHENE MEMBRANE - Technologies are generally described for gas filtration and detection devices. Example devices may include a graphene membrane and a sensing device. The graphene membrane may be perforated with a plurality of discrete pores having a size-selective to enable one or more molecules to pass through the pores. A sensing device may be attached to a supporting permeable substrate and coupled with the graphene membrane. A fluid mixture including two or more molecules may be exposed to the graphene membrane. Molecules having a smaller diameter than the discrete pores may be directed through the graphene pores, and may be detected by the sensing device. Molecules having a larger size than the discrete pores may be prevented from crossing the graphene membrane. The sensing device may be configured to identify a presence of a selected molecule within the mixture without interference from contaminating factors. | 06-05-2014 |
20140206090 | ETCHANT PRODUCT ANALYSIS IN ALKALINE ETCHANT SOLUTIONS - Silicon ions in an alkaline etchant solution are analyzed by acidifying a sample of the etchant solution, adding fluoride ions in excess of the concentration required to react with all of the silicon ions, and using a fluoride ion specific electrode (FISE) to detect free fluoride ions in the resulting test solution. Good sensitivity and precision are provided by using a relatively acidic test solution and only a slight excess of fluoride ions, and limiting the analysis range to the maximum expected silicon concentration in the etchant solution. | 07-24-2014 |
20140356965 | METHOD FOR DETERMINING THE SURFACE CONCENTRATION OF CARBOXYL GROUPS ON A LENS - The invention is related to a method for qualifying and quantifying carboxyl groups on the surfaces of a silicone hydrogel contact lens. The method of the invention comprises the steps of: (a) obtaining silicone hydrogel contact lenses each of which comprises a silicone hydrogel lens body (i.e., bulk material) and a coating thereon, wherein the silicone hydrogel lens body is obtained from a lens formulation free of any polymerizable component including one or more carboxyl groups, wherein the coating comprises a polymer having carboxyl groups; (b) immersing a given number of the silicone hydrogel contact lenses in a fixed volume of a C | 12-04-2014 |
20140370610 | METHODS FOR QUANTITATIVE ANALYSIS OF ASBESTOS IN VERMICULITE-CONTAINING MATERIALS - A method for quantitative analysis of asbestos in vermiculite-containing materials includes a first embodiment which includes washing the sample with water or treating the sample with a low concentration acid to digest gypsum and carbonates, ashing the sample at a low temperature to remove cellulose, therefrom and analyzing the sample. Digestion may be effected before or after ashing. Subsequently, a second subsample may be ashed at low temperature to remove cellulose and refluxed with a concentrated acid followed by refluxing with a base and rinsing with deionized water to wash away gypsum, vermiculite and other soluble components. This is followed by analysis to determine asbestos concentration. In a further embodiment, the residue if the first embodiment may be employed as the second subsample. | 12-18-2014 |
20150099303 | MULTIPLE WAVELENGTH LIGHT SOURCE FOR COLORIMETRIC MEASUREMENT - A colorimetric wet chemistry analyzer for determining a concentration of an analyte of interest in a sample is provided. The analyzer comprising includes a reaction chamber configured to receive the sample and facilitate a reaction that changes a color of the sample based on the concentration of the analyte of interest. A photometric cell is operably coupled to the reaction chamber to receive the sample and direct illumination therethrough. The photometric cell has a first illumination source configured to provide illumination at a first wavelength through the photometric cell and a second illumination source configured to provide illumination at a second wavelength through the photometric cell. The second wavelength is different than the first wavelength. A photo detector is configured to detect illumination passing through the photometric cell. A controller is coupled to the first illumination source, the second illumination source and the photo detector and is configured to provide an indication of concentration relative to the analyte of interest based on a signal from the photo detector. | 04-09-2015 |
20150099304 | PHOTOMETRIC MEASUREMENT CELL - An online colorimetric analyzer that generates an indication of a material in a sample is provided. The analyzer includes a peristaltic pump configured to convey. A photometric cell is operably coupled to the peristaltic pump to receive the sample. An illumination source is disposed to direct illumination through the sample in the photometric cell along an angle of incidence. A photodetector disposed to receive illumination passing through the photometric cell along the angle of incidence and provide a signal indicative of a color of the sample. A controller is coupled to the illumination source, the photodetector and the peristaltic pump. The photometric cell is tilted relative to vertical such that a surface of liquid present when the photometric cell is partially filled substantially reflects the illumination away from the angle of incidence. | 04-09-2015 |
20160077076 | ON-LINE WET CHEMISTRY ANALYZER - A wet chemistry analyzer is provided. The wet chemistry analyzer comprises a reaction chamber configured to receive a reactant solution from a sample inlet and facilitate a process reaction. The wet chemistry analyzer also includes a detection chamber configured to receive a portion of a reaction mixture from the reaction chamber and measure a concentration of a chemical within the reaction mixture. The reaction chamber and the detection chamber are fluidically coupleable such that a portion of the reaction mixture can be directed to flow into the detection chamber to pre-condition a surface inside the detection chamber. | 03-17-2016 |