• The COS reactor utilizes a platinum and ruthenium bimetallic catalyst supported on mesoporous zirconia that is highly active and oxidizes at relatively low temperature a wide variety of volatile organic compounds (VOCs) and inorganic toxic emissions produced by WMS processes. (sae.org)
  • This study conducted field and laboratory measurements for gaseous pollutants and semi-VOCs (16 PAHs, 16 chlorinated pesticides and 14 PCBs) in RS burning smoke to determine emission factors (EFs) and emission concentration profiles. (cdc.gov)
  • This paper describes the detection of volatile organic compounds (VOCs) using an e-nose system based on a virtual sensor array (VSA). (researchgate.net)
  • An activated carbon mesh layer eliminates harmful gaseous pollutants such as volatile organic compounds (VOCs), tobacco smoke, and other odours. (homedepot.ca)
  • The various CLCs used in this experiment were studied to determine their sensitivity to certain volatile organic compounds (VOCs), namely toluene, cyclohexane, and ethanol. (aps.org)
  • The effluent from foam laser processing will include various volatile organic compounds (VOCs) and should be routed to an exterior environment. (ulsinc.com)
  • Bakken oil contains volatile organic compounds (VOCs). (sightline.org)
  • Secondary Organic Aerosols (SOA) are formed by reaction of Volatile Organic Compounds (VOCs), which are released by plants and trees. (uni-bayreuth.de)
  • Volatile organic compounds (VOCs) are a complex group of gaseous air pollutants which are known to be especially elevated inside modern buildings. (stanford.edu)
  • the measurement chamber was protected from radiation by a first-aid cover and volatile organic compounds (VOCs) were added using a small additional flow and a temperature-controlled oven. (uni-frankfurt.de)
  • Activated carbon has special properties that allow it to remove volatile organic compounds (VOCs), odors, and other gaseous pollutants from the air. (rwmansiononpeachtree.com)
  • Particle filter with active carbon for use in rooms where removal of heavy gaseous pollutants, such as tobacco smoke or volatile organic compounds (VOCs), is required. (hammacher.com)
  • These include painting with low volatile organic compound paint, which has fewer gaseous pollutants than its regular counterparts. (gabrielash.com)
  • One exception is the collection and storage of urine samples without loss of volatile selenium compounds (Bem 1981). (cdc.gov)
  • Freezing of biological samples immediately following collection is recommended to reduce enzymatic formation of volatile selenium compounds. (cdc.gov)
  • Characterization of gaseous and semi-volatile organic compounds emitted from field burning of rice straw. (cdc.gov)
  • The role of volatile sulfur compounds (VSCs) in producing bacteria that colonize the dorsal surface of the tongue was recently understood as a primary cause of halitosis (bad breath). (medscape.com)
  • Blood-borne causes often are consequences of metabolic processes that emit odorous volatile sulfur compounds, which are taken by the bloodstream, transported to the lungs, and emitted during exhalation. (medscape.com)
  • He and coworkers established that oral malodor (bad breath) is associated with the presence of volatile sulfur compounds, primarily hydrogen sulfide and methylmercaptan. (medscape.com)
  • Yoghurt and its individual ingredients neutralised a lower percentage of volatile compounds of fried garlic compared to raw garlic. (yahoo.com)
  • Group of compounds with a high vapour pressure which can therefore change easily into a gaseous state. (internationaloliveoil.org)
  • The new gas chromatograph ($2,499) is a "portable, easy-to-use" instrument for separating and analyzing compounds contained in a volatile liquid or gaseous sample. (campustechnology.com)
  • A CVD method uses reactive, volatile compounds that decompose on a heated substrate. (lesker.com)
  • The starting materials are often organo- or hydrido-compounds that pyrolyse at relatively low temperatures into a non-volatile (film) component and a pumpable vapor/gas. (lesker.com)
  • Gas chromatography (GC) is a common analytical technique used to separate and analyze volatile and semi-volatile compounds in a mixture. (sigmaaldrich.com)
  • Many samples can be analyzed by GC so long as the compounds are reasonably volatile (can be vaporized) yet are thermally stable (do not degrade at high temperature). (sigmaaldrich.com)
  • Toluene, for example, is ranked fourth of all volatile organic compounds in terms of overall contribution to ozone production in northern Europe, behind butane, ethane and ethanol, based on a recent trajectory model calculation by Derwent et al. (uni-bayreuth.de)
  • A low-temperature aerosol simulation chamber facility (LOTASC) has been constructed in order to investigate the aerosol-partitioning of semi-volatile compounds at low temperature (down to -25°C). This will allow simulating tropospheric photochemistry, including cirrus clouds. (uni-bayreuth.de)
  • Utilizing new laser technology, the EVP team will develop a portable instrument that measures volatile organic compounds in air and breath samples with unprecedented speed and accuracy. (stanford.edu)
  • This latter value is associated with sticky non-volatile gaseous compounds, too. (uni-frankfurt.de)
  • A new study conducted in a lab - with follow-up human breath tests being planned - showed that whole milk plain yogurt prevented almost all of the volatile compounds responsible for garlic's pungent scent from escaping into the air. (technologynetworks.com)
  • Generally, the iodocarbon forms are predominant, obtained by reactions of iodine with atmospheric volatile organic compounds (VOC).Without organic compounds, the iodine oxides I x O y and INO x become the main species. (witpress.com)
  • Semi-volatile PAHs may not be effectively reduced by the aftertreatment systems, and ambient area sampling did not predict the personal airborne PAHs exposure well, neither did the slightly elevated concentration of urinary PAH metabolites correlate with airborne PAH exposure. (lu.se)
  • The semi-volatile behavior of the PAHs might have led to inefficient removal in the engines aftertreatment systems and delayed removal by the workplace ventilation system due to partitioning to indoor surfaces. (lu.se)
  • This is a portable instrument for separating, analyzing, and identifying substances contained in a volatile liquid or gaseous sample. (vernier.com)
  • Mineral water , waters which are so impregnated with foreign ingredients, such as gaseous, sulphureous, and saline substances, as to give them medicinal properties, or a particular flavor or temperature. (freedictionary.org)
  • Around 4.5 billion years ago, water and other volatile substances evaporated from the regions close to the Sun leaving behind the inner planets Mercury, Venus, Earth and Mars as dry, rocky worlds. (mpg.de)
  • However, this data will probably not be sufficiently accurate for secure experimental detections of specific molecules within complex gaseous mixtures in laboratory or astronomy settings. (frontiersin.org)
  • The Blue Pure 211+ Particle and Activated Carbon Replacement Filter protects against both gaseous and particulate contaminates. (homedepot.ca)
  • The terrorist attack to the World Trade Center (WTC), the subsequent tower collapse, and the 9.5-month recovery of the site exposed hundreds of thousands of people to a poorly characterized mix of debris, dust, smoke, fumes, and volatile and particulate combustion products. (cdc.gov)
  • We infer that the calcite precipitated first over a wide range of temperatures and oxygen partial pressures, and that the proportion of gaseous CO 2 /CO/CH 4 molecules changed temporally. (nature.com)
  • Scientists measured the levels of volatile molecules in gaseous form present before and after each treatment. (yahoo.com)
  • This may be because of their ability to trap the volatile molecules before they are emitted into the air. (yahoo.com)
  • They used mass spectrometry to measure levels of the volatile molecules in gaseous form present before and after each treatment. (technologynetworks.com)
  • The proteins studied included different forms of whey, casein and milk proteins, all of which were effective at deodorizing garlic - likely because of their ability to trap the volatile molecules before they were emitted into the air. (technologynetworks.com)
  • Gaseous P-molecules are rare, with speciation information scarce. (frontiersin.org)
  • 2018), quantification of volatile organic species emitted from cannabis plants (Samburova et al, 2019), chemical characterization of fire emissions (Sengupta et al. (dri.edu)
  • Here, effects of gasifier conditions (microwave or conventional) on the gasification characteristics of four different types of coal are evaluated by analysis of gaseous species generated during pyrolysis and gasification reactions. (osti.gov)
  • Volatiles organic metabolites (VOMs) are a large group of carbon-bound chemicals elements, gaseous at room temperature that are the products of metabolism. (ecco-ibd.eu)
  • Green synthesis of a superhydrophobic metal-organic gel for the capture of trace volatile organic compound from humid air. (tsinghua.edu.cn)
  • Gaseous molybdenum difluoride dioxide is a tetrahedral molecule. (wikipedia.org)
  • ISO 6529:2013 describes laboratory test methods to determine the resistance of materials used in protective clothing, including gloves and including footwear, when the footwear is an integral part of the clothing, to permeation by liquid or gaseous chemicals under the conditions of either continuous or intermittent contact. (cdc.gov)
  • Method A is applicable to testing against liquid chemicals, either volatile or soluble in water, expected to be in continuous contact with the protective clothing material. (cdc.gov)
  • Gaseous isoprenoids like á-pinene are oxidized by atmospheric reactants like ozone or hydroxyl radicals and form particles by nucleation and aggregation. (uni-bayreuth.de)
  • The ideal gas equation PV = nRT, ideal gas theory, how to determine the relative molecular mass Mr of a volatile liquid, Dalton's Law of partial pressures, ideal gas behaviour and non ideal gas behaviour, Graham's Law of diffusion, Van der Waals equation of state, compressibility factors, critical pressure, critical temperature. (docbrown.info)
  • The liquid crystalline blends were placed in a vacuum-sealed container filled with a gaseous VOC for fifteen minutes. (aps.org)
  • Samples can be collected from solid, liquid, or gaseous materials. (sigmaaldrich.com)
  • The results indicate that secondary emissions can be an important source of gaseous PAH exposure in the mine. (lu.se)
  • It is estimated that the burning and collapse of the WTC towers, the subsequent 3-month smoldering fires, and the recovery work released a complex mixture of irritant dust, smoke, and gaseous combustion materials, with widely variable composition and concentrations over time. (cdc.gov)
  • Four different coal samples are tested: a lignite (Mississippi), a low-ash subbituminous (Wyodak), a high-ash subbituminous (Usibelli), and a low volatile bituminous (Pocahontas #3). (osti.gov)
  • Langmuir-Blodgett (LB) thin films using a N,N'-(L-alanine tert-butylester)-3,4:9,10-perylene diimide derivative were prepared to determine the optimum thin film forming conditions and their sensing properties towards volatile organic vapors. (researchgate.net)
  • The characterization of the released toxicants at the WTC site was deficient, particularly so for its volatile components. (cdc.gov)
  • A PVD method evaporates or sputters a material, producing a gaseous plume or beam that deposits a film on the substrate. (lesker.com)
  • A novel method for the determination of semi-volatile polycyclic aromatic hydrocarbons (PAHs) in gaseous samples was developed using a partition-based extraction device. (go.jp)
  • A major fraction of atmospheric aerosol particles, which affect both air quality and climate, form from gaseous precursors in the atmosphere. (cern.ch)
  • The Ion and Neutral Mass Spectrometer, or INMS, was capable of determining the chemical, elemental and isotopic composition of the gaseous and volatile components of the neutral particles and the low energy ions in Titan's atmosphere and ionosphere, Saturn's magnetosphere, and the ring environment. (nasa.gov)
  • When fertilizer granules are deep banded, gaseous NH 3 formed around urea granules can be interconverted to ammonium (NH 4 +), a non-volatile ion which subsequently absorbs to negatively charged soil particles. (canolacouncil.org)
  • Formaldehyde is a volatile organic compound made of carbon, hydrogen, and oxygen. (miragefloors.com)
  • The efficiency of volatile formaldehyde removal was assessed in 86 species of plants representing five general classes (ferns, woody foliage plants, herbaceous foliage plants, Korean native plants, and herbs). (greenplantsforgreenbuildings.org)
  • Phytoremediation potential was assessed by exposing the plants to gaseous formaldehyde (2.0 mL L-1) in airtight chambers (1.0 m3) constructed of inert materials and measuring the rate of removal. (greenplantsforgreenbuildings.org)
  • Species classified as excellent are considered viable phytoremediation candidates for homes and offices where volatile formaldehyde is a concern. (greenplantsforgreenbuildings.org)
  • Hydrogen cyanide (HCN, also known as prussic acid) is a volatile liquid that boils at 25.6° C (78.1° F). Potassium and sodium cyanide salts are water soluble, whereas mercury, copper, gold, and silver cyanide salts are poorly water soluble. (medscape.com)
  • Solvent evaporation rates vary -- some are immediately volatile at room temperature, while others may only evaporate at elevated temperatures. (techspray.com)
  • Volatilization occurs when urea hydrolysis elevates pH levels and increases the concentration of gaseous NH 3 around granules. (canolacouncil.org)
  • In contrast, TASK-3, a member of this family that is very sensitive to volatile anesthetics, such as halothane, is insensitive to the anesthetic gases. (aspetjournals.org)
  • Neptunium and plutonium do form volatile hexafluorides but plutonium hexafluoride is thermodynamically unstable. (nextbigfuture.com)
  • With GC, the analyte eluting out of the column is in its gaseous form and is easily ionizable in a mass spectrometer. (chromatographyonline.com)
  • How Do Gaseous Planets Form? (weizmann.ac.il)
  • Cyanide was first used as a chemical weapon in the form of gaseous HCN in World War I. Starting in 1915, the French military used approximately 4000 tons of cyanide, without notable success. (medscape.com)
  • What fills the entire volume of its container and may become volatile and explosive when compressed? (jokojokes.com)
  • The influence of gaseous metabolites of saprophytic soil bacteria on the growth and multiplication of L. monocytogenes and Y. pseudotuberculosis was studied. (nih.gov)
  • Volatile metabolites of bacteria of the genus Aeromonas showed the highest stimulating activity. (nih.gov)
  • Influence of volatile metabolites of saprophytic soil microflora on the propagation of pathogenic bacteria]. (nih.gov)
  • Effect of volatile metabolites from germinating seeds on the reproduction of the bacteria Listeria monocytogenes and Yersinia pseudotuberculosis]. (nih.gov)
  • Acetone is a volatile chemical used as an industrial solvent and a precursor of important downstream products (Anbarasan et al. (springeropen.com)
  • There are guidelines from official methods, such as AOAC official method 2007.01 and EN 15662 QuEChERS method, that begin with the extraction of pesticides from food samples using acetonitrile, which makes the method optimization and selection of QuEChERS easier (2,3). (chromatographyonline.com)
  • This is because the nature of chemical work is so volatile and full of potential danger. (graniteworkwear.com)
  • Here we show that certain members of the two-pore-domain K + channel superfamily may represent an important new target for these gaseous anesthetics. (aspetjournals.org)
  • However, aldehydes are difficult to detect directly due to their small Raman scattering cross-section and gaseous phase. (bvsalud.org)
  • The humor about volatile can easily lighten the mood and bring smiles to people's faces. (jokojokes.com)
  • means a device in which gaseous fuel is combusted to produce useful heat or energy. (gc.ca)
  • As such, these vapours are enriched in the more volatile components present in the asphalt and would be expected to be chemically and potentially toxicologically distinct from the parent material. (cdc.gov)
  • If the formed products are gaseous, then the usual way of quantifying them is the use of online gas chromatography (GC), a method that is not compatible with open RDE cells. (acs.org)