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  • chromatographic
  • Thermo Fisher Scientific Inc., the world leader in serving science, has announced that it will host an informative seminar on the latest advances and applications for its vast range of gas chromatographic products for the environmental laboratory, culminating with the TSQ Quantum GC. (environmental-expert.com)
  • The drop exiting from the lower open end of the tube is instantaneously vaporized, and the carrier gas or eluting gas carries the vaporized sample out of the bore and toward a chromatographic column. (google.com)
  • More particularly, the invention pertains to a device for delivering a reproducible calibrated volume of a liquid sample into a carrier gas stream wherein the liquid is flash vaporized and flushed by the carrier gas stream into a gas chromatographic apparatus. (google.com)
  • The vaporized sample is of course swept by the carrier gas (eluting gas) from the evaporation point or point of vaporization to the chromatographic column. (google.com)
  • A still further object is to provide novel apparatus satisfactory for precise automatic sampling of a liquid process stream containing high boiling and reactive materials, flash vaporization of the sample, and flushing such vaporized sample into a gas chromatographic apparatus. (google.com)
  • The gas chromatography market has seen an extraordinary amount of technological advancements in the last few years, as companies have introduced new systems that perform chromatographic procedures in a lesser amount of time and provide more detailed results. (pitchengine.com)
  • company's
  • A world leader in the design and manufacture of gas analysis technology, Geotech has achieved a major business milestone after reporting the 5000th sale of its world-leading portable gas analysers, marking a seminal date in the company's continuing global expansion. (environmental-expert.com)
  • argon
  • The bulk of the stable natural components of the atmosphere are nitrogen, oxygen, carbon dioxide, gaseous water, argon and other trace gases. (wikipedia.org)
  • solids
  • There are three states of matter under these conditions: solids, liquids, and gases. (wikipedia.org)
  • Although all three are distinct states both solids and gases can dissolve (or disperse) in liquids. (wikipedia.org)
  • liquid
  • 5 nor- To 024w SAMPLE VAPORIZER FOR GAS CHROMATOGRAPHY This invention relates to gas chromatography, and particularly to an apparatus used for introducing samples from a liquid stream into a gas chromatography column. (google.com)
  • Automatic transfer of a sample directly from a liquid process stream into a gas chromatography column presents many problems, among which is achievement of flash vaporization of the liquid sample. (google.com)
  • Transporting the metered liquid sample to the point where it is to be vaporized is a fundamental problem in process chromatography. (google.com)
  • An object of this invention is to provide a novel liquid sample vaporizer for gas chromatography. (google.com)
  • A further object is to provide novel apparatus for the transfer of a calibrated volume from a liquid process stream to a position in a carrier gas stream wherein the liquid is flash vaporized and flushed by the carrier gas stream into a gas chromatography column. (google.com)
  • Hence the full name of the procedure is "Gas-liquid chromatography", referring to the mobile and stationary phases, respectively. (wikipedia.org)
  • Gas chromatography is also sometimes known as vapor-phase chromatography (VPC), or gas-liquid partition chromatography (GLPC). (wikipedia.org)
  • Archer John Porter Martin, who was awarded the Nobel Prize for his work in developing liquid-liquid (1941) and paper (1944) chromatography, laid the foundation for the development of gas chromatography and he later produced liquid-gas chromatography (1950). (wikipedia.org)
  • IGC is a gas phase technique, thus is not subject to the above limitations of the liquid phase techniques. (wikipedia.org)
  • There is a wide variety of ionization techniques, depending on the phase (solid, liquid, gas) of the sample and the efficiency of various ionization mechanisms for the unknown species. (wikipedia.org)
  • The dipole moment of methyldiborane is 0.56 D. It has a vapour pressure of 61 mm Hg at -77.2 °C. The predicted heat of formation for the liquid is ΔH0f=-14 kcal/mol, and for the gas -9 kcal/mol. (wikipedia.org)
  • quadrupole residual
  • By 1966 Finnigan and collaborator Mike Uthe's EAI division had sold over 500 quadrupole residual gas-analyzer instruments. (wikipedia.org)
  • Because of the strong market demand the EAI division was able to sell more than 500 of these quadrupole residual gas analyzers between 1964 and 1966. (wikipedia.org)
  • column
  • A process by which the components of a mixture are separated by volatilizing the sample into a carrier gas stream and passing the gas through a column containing a substance that retains (absorbs) and releases the volatile constituents. (contractpharma.com)
  • The drop exiting from the of Search 0C, lower open end of the tube is instantaneously vapor- 23/230 232 253 219/273 ized, and the carrier gas or eluting gas carries the vaporized sample out of the bore and toward a chro- {561 kefereme Clled matographic column. (google.com)
  • and thence into the gas chromatography column. (google.com)
  • Gas chromatography is in principle similar to column chromatography (as well as other forms of chromatography, such as HPLC, TLC), but has several notable differences. (wikipedia.org)
  • As the carrier gas sweeps the analyte molecules through the column, this motion is inhibited by the adsorption of the analyte molecules either onto the column walls or onto packing materials in the column. (wikipedia.org)
  • equipment
  • Robert Emmet Finnigan (born May 27, 1927) is an American pioneer in the development of gas chromatography-mass spectrometry equipment (GC/MS). Finnigan founded the Scientific Instruments Division of Electronic Associates, Inc., producing the first commercial quadrupole mass spectrometer in 1964. (wikipedia.org)
  • Vietnam
  • This growth will be driven by factors such as the increasing number of conferences related to chromatography in Singapore and Malaysia, and the expansion of chromatography companies in China, India, Singapore, Vietnam, and Japan. (pitchengine.com)
  • atomic
  • Thomson concluded that the neon gas was composed of atoms of two different atomic masses (neon-20 and neon-22). (wikipedia.org)
  • Chemicals
  • Engineers at MIT are developing a tiny sensor that could be used to detect minute quantities of hazardous gases, including toxic industrial chemicals and chemical warfare agents, much more quickly than current devices. (environmental-expert.com)
  • technique
  • Inverse gas chromatography or IGC is a highly sensitive and versatile gas phase technique developed over 40 years ago to study the surface and bulk properties of particulate and fibrous materials. (wikipedia.org)
  • discharges
  • In 1886, Eugen Goldstein observed rays in gas discharges under low pressure that traveled away from the anode and through channels in a perforated cathode, opposite to the direction of negatively charged cathode rays (which travel from cathode to anode). (wikipedia.org)
  • The study of gas discharges in the mid 19th century led to the discovery of anode and cathode rays, which turned out to be positive ions and electrons. (wikipedia.org)
  • technology
  • The Oil and Gas Industry were early adopters of the technology for the complex oil samples to determine the many different types of Hydrocarbons and its isomers. (wikipedia.org)
  • chemicals
  • Engineers at MIT are developing a tiny sensor that could be used to detect minute quantities of hazardous gases, including toxic industrial chemicals and chemical warfare agents, much more quickly than current devices. (environmental-expert.com)