Class / Patent application number | Description | Number of patent applications / Date published |
436109000 | Cyanide or isocyanide | 14 |
20080227214 | Method for the Hydrocyanation of 1,3-Butadiene - A process is described for preparing 3-pentenenitrile by hydrocyanating 1,3-butadiene in the presence of at least one catalyst, wherein unhydrocyanated 1,3-butadiene is removed from the effluent of the hydrocyanation and recycled into the process, and the recycled 1,3-butadiene is monitored for the content of hydrogen cyanide. | 09-18-2008 |
20080280372 | Continuous monitor for cyanide and cyanogen blood agent detection in water - A device for continuous detection of the presence of a cyanide analyte and/or cyanogen analyte in an aqueous sample which relies upon continuous sampling and controlled delivery of reagents for a chemical reaction which forms a colored dye in the presence of the analyte(s). The device employs a single chemical detection pathway which detects both cyanide and cyanogen and demonstrates continuous user-free operational stability over at least a one month period of time. The continuous monitoring device optionally may include a command post computer interface for enabling the remote monitoring of one or more devices, a wireless communication module for providing real-time data monitoring of the devices to a central monitoring facility, and a global positioning system module to enable the determination of an exact location of the analyte contamination in a water network. A method for detecting these analytes is also provided. | 11-13-2008 |
20090117663 | SAMPLING DEVICE - A sampling device for analysis of a substance which is chosen from the group consisting of isocyanates, aminoisocyanates, amines, and isothiocyanates, and which is present in an air flow intended to pass through the sampling device is disclosed, as well as a method for the production of said sampling device, and a method for the analysis of said substance in the air flow. | 05-07-2009 |
20090215189 | Sensor of species including toxins and chemical warfare agents - The present invention generally relates to emissive materials, devices, and related methods. In some cases, the present invention provides sensors and methods for the determination of analytes, wherein the analytes may be determined by monitoring, for example, a change in an optical signal of an emissive material upon exposure to an analyte. The analyte and the emissive material may interact via a chemical reaction, such as an oxidative addition reaction, or other chemical, biochemical or biological interaction (e.g., recognition), to form a new emissive species. In some cases, the present invention may be useful in the detection of a wide variety of analytes, such as toxins, chemical warfare agents, and explosives. The present invention also provides emissive compounds, and related methods, including metal complexes that are capable of interacting with an analyte to produce a change in the emission of the compound. Some advantages of the present invention include the determination of analytes with high specificity and sensitivity and the ability to fabricate simplified and highly portable devices. | 08-27-2009 |
20090258429 | Colorimetric detection of cyanide with a chromogenic oxazine - A chromogenic oxazine compound for the colorimetric detection of cyanide was designed. Indeed, the [1,3]oxazine ring of our compound opens to form a phenolate chromophore in response to cyanide. The heterocyclic com-pound may be comprised of fused benzooxazine and indoline rings: | 10-15-2009 |
20100203648 | MICROSENSOR MATERIAL AND METHODS FOR ANALYTE DETECTION - The compositions and methods relate to an organic polymer-inorganic particle sensor material for detecting analytes. Interactions between the polymer and the particles are affected by the presence of analyte, which displaces the polymer and increases its free volume. This change in free volume can be detected, e.g., using an embedded piezoresistive microcantilever (EPM) sensor. Analytes that can be detected include noxious substances, such as hydrogen cyanide gas and carbon monoxide. | 08-12-2010 |
20110039347 | Analytical Method and Apparatus - A method for determining the amount of a chemical species in a sample, in particular the amount of weak acid dissociable cyanide or total cyanide in a sample, and an apparatus for performing said method. The method comprises the steps of: i) treating the sample to liberate the chemical species into a gaseous stream; ii) directing the gaseous stream to a scrubber; iii) absorbing the chemical species into a scrubber solution; and iv) determining the amount of chemical species absorbed into the scrubber solution, wherein any remaining chemical species not absorbed into the scrubber solution is directed or recirculated to the scrubber in the gaseous stream and step iii) is repeated to increase absorption of the chemical species prior to performing step iv). | 02-17-2011 |
20120231547 | Reusable End-Capped Bipyridine Compound Useful For Selective Detection Of Cyanide Anions And Process For Preparation Thereof - The present invention describes the development of a end-capped bipyridine compound having formula A and the zinc complex having formula B. The assay having formula 1 can be used to estimate and quantify the amount of zinc ions by monitoring the fluorescence changes. The assay with formula 1 can be use to image and detect Zn | 09-13-2012 |
20130005044 | Rapid Method to Measure Cyanide in Biological Samples - A method and devices analyze for the presence of cyanide in samples using colorimetric analysis of samples after contacting with cobinamide or monocyanocohinapmide. | 01-03-2013 |
20130203178 | METHOD FOR DETECTION OF CYANIDE IN WATER - The method for detection of cyanide in water is a method for the detection of a highly toxic pollutant, cyanide, in water using ZnO | 08-08-2013 |
20140024128 | METHOD OF DETECTING NITROGEN COMPOUNDS CONTAINED IN EXHAUST GASES, NOTABLY OF INTERNAL-COMBUSTION ENGINES - A method of detecting nitrogen compound emissions in exhaust gases treated with selective catalytic reduction achieved by injecting a reducing agent into the gases and by passing these gases through a catalyst
| 01-23-2014 |
20140141522 | OPTICAL DETECTION OF CYANIDES, METHOD, KIT AND DEVICE - A method for selective detection of cyanide in a sample comprises determining a color change of a corrinoid compound caused upon contact with the sample. A high detection sensitivity and selectivity are achieved by having the corrinoid compound adsorbed on a solid phase. This general principle is applied in a kit for selective detection of cyanide and to uses thereof. One application consists in a device for removing hydrogen cyanide from a gaseous phase, e.g. tobacco smoke. | 05-22-2014 |
20140302612 | NEMATIC LIQUID CRYSTAL THIN FILMS FOR CHEMICAL VAPOR SENSING - A method of detecting an analyte by: providing a device having a substrate, an alignment layer on the substrate, and a film having 4-pentyl-4′-cyanobiphenyl on the alignment layer; exposing the film to air suspected of containing the analyte; measuring a change in a physical property of the film in response to exposing the film; measuring the kinetics of the change in the physical property; and correlating the kinetics to the concentration of the analyte, identification of the analyte, or both. | 10-09-2014 |
20150037900 | Point of Care Cyanide Test Device and Kit - A device, method, and test kit for rapidly detecting cyanide in a sample. The inventive device comprises a container comprising a sample chamber and a sensor chamber separated by a selectively permeable barrier. The sample chamber contains a reagent for releasing cyanide from the sample, and the sensor chamber contains a cyanide detector comprising a conductive polymer which absorbs the released cyanide, generating a change in signal. Signals can be viewed colorimetrically or transmitted to a LCD/LED panel wherein the cyanide measurement readout is displayed. | 02-05-2015 |