How To Use Spectroscopy In A Sentence
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Since the extra energy being transferred from one molecule to the next changes the way each absorbs and emits light, the flow of energy can be followed through optical spectroscopy, resolved on a femtosecond timescale.
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X-ray absorption and photoemission spectroscopy of zinc protoporphyrin adsorbed on rutile TiO2 (110) prepared by in situ electrospray deposition
Next Big Future
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He was the author of more than 200 articles on chemical kinetic gas-phase reactions, molecular spectroscopy, and thermo-chemistry of organic compounds.
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Professor Siegbahn: you have all contributed significantly to the development of two spectroscopic methods, namely the laser spectroscopy and the electron spectroscopy.
The Nobel Prize in Physics 1981 - Presentation Speech
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I also began planning the experiment on the optical spectroscopy of positronium.
Steven Chu - Autobiography
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This microscope is equipped with a field-emission gun, thus it provides an atomic resolution in imaging and good energy resolution in spectroscopy.
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The authors then subjected the iron-rich microspherical residue of the red-gray chips to X-ray energy dispersive spectroscopy (XEDS) to compare it with the profile of microspherical residue from known thermite combustions and found them to be virtually identical.
Pardon Our Dust, or, Why the World Trade Center Dust Matters
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Their photobleaching behavior was studied using spectrally resolved emission spectroscopy.
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Through optical spectroscopy, researchers can probe the trapped particle's size, shape, refractive index and chemical composition.
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Here we use in situ Raman spectroscopy and a new theoretical model to investigate the high-pressure behaviour of stishovite.
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Fluorescence spectroscopy is an effective method of study on protein conformation in aqueous solution.
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It uses a technique called electrochemical impedance spectroscopy (EIS) with a series of parallel bands of electrodes with alternate bands connected together.
PhysOrg.com - latest science and technology news stories
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Extensive facilities for evaluation of catalytic activity include Auger electron spectroscopy and diffuse reflectance and transmission Fourier transform infrared spectroscopy.
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The vitamins were assayed by high-performance liquid chromatography and the trace elements by atomic-absorption spectroscopy.
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X-ray spectroscopy can perhaps best be defined by the statement that the exactitude with which wavelengths can now be measured by his methods is a thousand times greater than that attained by
Nobel Prize in Physics 1924 - Presentation Speech
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One method they use, fluorescence spectroscopy, involves recording optical spectra from molecules absorbing and emitting light.
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By that time atomism had been extended from chemistry and the kinetic theory to offer explanations in stereochemistry, electro-chemistry, spectroscopy and so on.
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Capable of producing microwatts to watts of power, it is designed for spectroscopy applications.
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Feelisch, M. and Schmidt, H. H. (2000) Electronparamagnetic resonance spectroscopy using N-methyl-D-glucamine dithiocarbamate iron cannot discriminate between nitric oxide and nitroxyl: implications for the detection of reaction products for nitric oxide synthase.
Citizendium, the Citizens' Compendium - Recent changes [en]
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Schematic diagrams of the probe and of the entire spectroscopy system are shown in Fig.1.
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In order to overcome the overlapped absorption structures in differential optical absorption spectroscopy(DOAS), a method of spectrum correction based on Kalman filtering is developed.
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To measure the efficacy of sunscreens, researchers used electron spin resonance spectroscopy to measure free radical production induced by UVA in the skin of white people.
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The sample solutions were analysed by inductively coupled plasma atomic emission spectroscopy.
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This is called electron spin resonance spectroscopy.
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The comparative study was conducted by trait identification, microscopic identification, thin-layer chromatography and ultraviolet spectroscopy.
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Kinetic IR spectroscopy was used to reveal β-sheet formation and water expulsion in the folding of single-chain monellin (SMN) composed of a five-stranded β-sheet and an α-helix.
Proceedings of the National Academy of Sciences current issue
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Raman spectroscopy is used to identify certain pigments, such as vermilion and red lead, that are not detectable with FTIR.
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Our system uses NIR spectroscopy to measure analytes in tissue.
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“Raman imaging spectroscopy of a purported 3.5 billion year old microfossil” abstract.
First Contact
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The system they focused on, three huge Jupiter-like planets orbiting the central star Upsilon Andromedae, was the first extrasolar multi-planet system ever discovered by Doppler spectroscopy.
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The feasibility of Raman spectroscopy used to diagnose cancer is analyzed.
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Crystal cleanliness and crystallinity were checked by Auger electron spectroscopy and low energy electron diffraction, respectively.
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Still at Varian, I was further extending my earlier work on stochastic resonance with the introduction of heteronuclear broadband decoupling by noise irradiation, the "noise decoupling" that led to a rapid development in carbon-13 spectroscopy.
Richard R. Ernst - Autobiography
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If PCFs fulfill their potential, they could have important applications in spectroscopy, metrology, biomedicine, imaging, and telecommunications.
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To elucidate the role of conformational entropy upon thermal unfolding in more detail, conformational dynamics in the time regime of picoseconds was investigated with neutron spectroscopy.
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Some researchers at the Franklin Institute in Philadelphia Stevens, Hanst, Doerr, and Scott, used a technique called long-path infrared spectroscopy on smog chamber products and spotted a set of IR bands that were particularly strong in the results of a biacetyl-NOx run.
Archive 2008-04-01
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The Nobel Prize in Physics 2005 was awarded to "the father of quantum optics", Roy Glauber, along with John Hall and Theodor Hänsch, who achieved a previously unattained precision in laser spectroscopy.
The Nobel Prize in Physics
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I might have written more, if I'd not had to spend so much time reading and researching and answering questions about astrochemistry, spectroscopy, exogenesis, organic chemistry, and South Korean history.
"Ko agi agi boroi tika oli oe lau?"*
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Heavy atom NMR spectroscopy of the hydrogens of P-enolpyruvate led to Mildred Cohn's solution of the reaction stereochemistry of the reaction of enolase using (3R) - phosphoglyceric acid-3-d39.
Irwin Rose - Autobiography
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One method they use, fluorescence spectroscopy, involves recording optical spectra from molecules absorbing and emitting light.
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The antioxidant capacity of plasma was measured with electron spin resonance spectroscopy while homocysteine and fasting plasma lipids were also determined.
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Lady Margaret Huggins (1848-1915), the daughter of a Dublin solicitor, became a pioneer of astronomical spectroscopy in partnership with her husband, Sir William Huggins (1824-1910) at their home in Tulse Hill
The Prime Minister's haiku
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Shimadzu, then combines two techniques called electroencephalography (EEG) and near-infrared spectroscopy (NIRS) to measure brain activity.
BusinessWeek.com --
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The mercury level was measured by cold vapor atomic absorption spectroscopy.
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For such a comparison to be completed, the availability of the atomic structure from x-ray crystallography and/or from NMR spectroscopy is very helpful.
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To determine these it is necessary to use a slower method such as atomic absorption spectroscopy or neutron activation.
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Measuring the frequency of vibrational modes using infrared spectroscopy reveals the molecular fingerprint of the compounds in a sample.
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Structure of polymerized products was characterized by IR spectroscopy and ESCA measurement.
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‘With laser spark spectroscopy, the higher energy laser beam dissociates the metal-containing molecules and particles into a plasma of atoms and ions,’ notes one researcher.
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Furthermore, RR spectroscopy is a widely used tool for the analysis of the heme-pocket structure in both the ferric and ferrous form of heme proteins.
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The properties of these chips were analyzed using optical microscopy, scanning electron microscopy (SEM), X-ray energy dispersive spectroscopy (XEDS), and differential scanning calorimetry (DSC).
The Melting/Burning of the Twin Towers on 9/11-How It Was Done
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Depict the naissance , content , the infection to laser physics of microwave spectroscopy.
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We show that spectroscopy of such chromophores can be done by adsorption to polystyrene microspheres and nanospheres in aqueous suspension.
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In this thesis, Fourier transform infrared (FTIR) spectroscopy combined with some analytical methods was used to classify and identify Plants of Ericaceae.
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With a larger beam expanding telescope and an additional etalon inside the cavity, the spectral width of the pulsed dye laser could be reduced to an unprecedented 0.0004 nm, and an additional external filter etalon soon permitted the first experiments on Doppler-free saturation spectroscopy of atomic resonance lines.
Theodor W. Hänsch - Autobiography
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Many of my other highly cited papers from the Stanford years describe relatively simple experiments such as ultrasensitive fluorescence spectroscopy with the power to detect the light from single atoms, sensitive intracavity absorption spectroscopy with a multimode dye laser, the first demonstration of continuous wave Doppler-fee two-photon spectroscopy, and the experiments with my student Carl
Theodor W. Hänsch - Autobiography
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EPR-and light absorbance spectroscopy [3]; mouse macrophage enzyme: cytochrome P-450 type hemoprotein [9]; naturally occuring neuronal mutant with a 105-amino acid deletion in the heme-binding domain as a result of in-frame mutation by specific alternative splicing, contains heme, but shows no l-arginine and NADPH-dependent citrulline-forming activity in presence of Ca2+ - promoted calmodulin, the heme coordination geometry is highly abnormal [28];
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The test uses nuclear magnetic resonance spectroscopy to analyse the chemical lubricants of condoms to distinguish between different brands.
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Motta's research interests include the behavior of nuclear reactor materials under irradiation; phase transformations; corrosion; mechanical behavior of materials; materials characterization using transmission electron microscopy, positron annihilation spectroscopy and synchrotron radiation; and zirconium alloys, intermetallic compounds and steels.
Penn State Live
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To determine these it is necessary to use a slower method such as atomic absorption spectroscopy or neutron activation.
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Possible applications may range from spectroscopy to wavelength generation in bands not easily accessible at present.
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The resulted copolymers were characterized by Fourier transform infrared spectroscopy and thermogravimetric analysis, respectively.
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Unfortunately a monochromatic beam is of only limited use for spectroscopy unless it is tunable.
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Electrical impedance spectroscopy is a method for studying the structure of organic and inorganic materials.
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The ALS is one of only two places in the world where photoelectron spectroscopy can be performed on surfaces at pressures above 1 torr (a unit of pressure equivalent to 1 millimeter of mercury in a barometer).
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Biochemical investigations and magnetic resonance spectroscopy are particularly useful in metabolic and mitochondrial disorders.
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In the chemistry laboratory, ultraviolet and visible spectroscopy (UV-vis spectroscopy) is used to study molecules and inorganic ions in solution.
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Current analysis methods entail clipping, near-infrared spectroscopy, and chemical procedures that, while accurate and site-specific, are laborious and take days to complete.
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Infrared spectra of Papaver somniferum L. and Papaver rhoeas were obtained directly, quickly and accurately by Fourier transform infrared spectroscopy (FTIR) with OMNI sampler.
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Others recalled the role that emission spectroscopy without this high time resolution can have in uncovering photodissociation.
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We studied the morphological and compositional differences of the fibrous amphibole samples with scanning electron microscopy and with energy dispersive spectroscopy x-ray microanalysis.
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All ignitable liquids were confirmed by gas chromatography and mass spectroscopy, according to the report.
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The frequency of light emitted from atoms in an excited state is measured in emission spectroscopy.
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The volatile profile of fruits determined by gas chromatography and mass spectroscopy is complex, including many alcohols, aldehydes and esters.
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Crystal cleanliness and crystallinity were checked by Auger electron spectroscopy and low energy electron diffraction, respectively.
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The lead concentrations remaining in solution were measured by atomic absorption spectroscopy, after a 48-hour period.
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Molecular Biometrics is a privately held metabolomics company that has developed a novel technology platform based on breakthrough metabolomic and biospectroscopy sciences.
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The light intensity encountered in single-molecule spectroscopy is many orders of magnitude higher than natural one, and the photobleaching under high-light condition occurs, on different time-scales, with the chromophoric systems.
PLoS ONE Alerts: New Articles
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NMR spectroscopy is an excellent tool to probe the degree of conjugation through the azine bridge.
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Using optical microscopy, scanning electron microscopy, X-ray energy dispersive spectroscopy, and differential scanning calorimetry, the scientists were able to determine that the Thermite present is of a specialized type called Nano-thermite or Superthermite.
Thermite
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NMR spectroscopy, which provides atomic resolution images of biological molecules such as proteins and nucleic acids, showed these aromatic rings were made of lignin derivatives that are abundant in rice soils.
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The frequency of light emitted from atoms in an excited state is measured in emission spectroscopy.
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'breadboard' of the coronagraph - which will be capable of spectroscopy as well as high-resolution imaging.
PhysOrg.com - latest science and technology news stories
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Because this is likely to be a large effort, new technologies such as mass spectroscopy, genomics, and novel protein purification strategies should be employed in this effort.
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This paper describes measurement of mirror reflectivity via cavity ring down spectroscopy.
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Lenkinski is currently researching clinical applications of in vivo magnetic resonance spectroscopy and developing in vivo multinuclear MR imaging methods.
PRWeb - Daily News Feed
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Many of my other highly cited papers from the Stanford years describe relatively simple experiments such as ultrasensitive fluorescence spectroscopy with the power to detect the light from single atoms, sensitive intracavity absorption spectroscopy with a multimode dye laser, the first demonstration of continuous wave Doppler-fee two-photon spectroscopy, and the experiments with my student Carl
Theodor W. Hänsch - Autobiography
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The most basic means of resolving a protein structure are through experimental observations, such as x-ray crystallography and certain forms of NMR spectroscopy.
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We looked at thin rock slices and fresh surfaces using a mapping technique called confocal Raman imaging spectroscopy.
PhysOrg.com - latest science and technology news stories
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This microscope is equipped with a field-emission gun, thus it provides an atomic resolution in imaging and good energy resolution in spectroscopy.
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Other studies in which quasi-static force spectroscopy was applied to globular proteins generally lack details that can be linked directly to the secondary structure of the protein.
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Trace elements were measured by atomic absorption spectroscopy.
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Kai M. Siegbahn, Uppsala University, Sweden, for his contribution to the development of high-resolution electron spectroscopy.
Press Release: The 1981 Nobel Prize in Physics
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The interaction between clomifene citrate(CC) and deoxyribonucleic acid (DNA) was studied by fluorescence spectroscopy using ethidium bromide (EB) as a fluorescence probe.
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They then confirmed the presence of azido with fourier transform infrared (FTIR) difference spectroscopy, which measures stretching frequencies of the atoms in the amino acids that make up a protein.
PhysOrg.com - latest science and technology news stories
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Laser induced breakdown spectroscopy (LIBS) has been shown to be a promising technique for element analysis. However, self-absorption effect deeply influences the LIBS measurements.
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The synthesized films were characterized by X - ray photoelectron spectroscopy and Fourier transform infrared spectroscopy.
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The volume also contains articles on photoelectron spectroscopy and the Auger effect.
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Metastable transfer emission spectroscopy ( MTES ) has been used for the determination of trace mercury.
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One common laboratory technique - the use of circularly polarized light in circular dichroic spectroscopy - optically records changes in protein secondary structure to study the dynamics within the biological system.
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By that time atomism had been extended from chemistry and the kinetic theory to offer explanations in stereochemistry, electro-chemistry, spectroscopy and so on.
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The analyses of circular dichroism and fluorescence spectroscopy suggest that the monomer is well folded, and that it has certain characteristic features when compared to its tetrameric counterpart.
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When a galaxy is bright enough that its starlight can be seen directly, we can use spectroscopy to discern its chemical composition and are able to relate it to nearby galaxies around us today.
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All ignitable liquids were confirmed by gas chromatography and mass spectroscopy, according to the report.
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Using Terahertz spectroscopy, RUB-chemists recently detected the surprisingly long-ranged influence of solvated biomolecules on the "dance" of surrounding water molecules.
Innovations-report
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Decay curves metastable fragment ions is also obtained by means of ion energy loss scans spectroscopy.
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Rosenberg used X-rays from the Advanced Photon Source to bombard chiral molecules adsorbed on a magnetic substrate and x-ray photoelectron spectroscopy to track changes in the molecular bonds.
Can't We All Be Friends?
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Magnetic resonance spectroscopy measures the amount of certain metabolites in the body.
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Cerebral hemodynamics in preterm infants during positional intervention measured with diffuse correlation spectroscopy and transcranial Doppler ultrasound.
Recent Neonatal Research Publications
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As a result of the extremely small line width of less than 5 MHz, possible applications are also in spectroscopy, metrology, sensor technology, and atomic physics.
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Li is now credited internationally for leading the team that discovered ultraviolet Raman spectroscopy technology, a groundbreaking tool for analyzing energy conversion; and for ultradeep desulfurization techniques that dramatically reduce the amount of sulfur emitted in the combustion of diesel.
When a Billion Chinese Jump
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After incubating the cells for one hour with soluble or lysate digests; calcium, iron, or zinc standards; or pure buffer, the researchers lysed the cells and measured mineral levels using atomic absorption spectroscopy.
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The authors used emission spectroscopy, laser flash photolysis and pulse radiolysis to measure a series of photophysical parameters of curcumin.
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This result is consistent with a recent investigation of K3 in the presence of large unilamellar vesicles of anionic phospholipids by circular dichroism spectroscopy in the solution state.
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The states of the Mn complex reached after increasing periods of heating were investigated by oxygen polarography, EPR spectroscopy, and, in particular, by x-ray absorption spectroscopy.
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A method for the determination of peroxides in peanut oil by the near - infrared spectroscopy was presented.
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Diffuse correlation spectroscopy for measurement of cerebral blood flow in preterm infants
Clinical Trials
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Dave Lang, silicide Schottky barriers from Marty Lepselter through Jim Phillips, infrared spectroscopy of shallow donors and acceptors from Gordon Thomas, and transport in the 2-dimensional electron gas from Dan Tsui.
Robert B. Laughlin - Autobiography
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Extensive facilities for evaluation of catalytic activity include Auger electron spectroscopy and diffuse reflectance and transmission Fourier transform infrared spectroscopy.
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The metal analysis was made by emission spectroscopy with plasma inductive connection in Perkin - Elmer equipment.
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It's so valuable that it's crowded out older, perfectly reasonable techniques like infrared spectroscopy.
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Such all-embracing inventions as the transistor, X-rays and nuclear magnetic resonance spectroscopy all come into this category.
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The quality of the LM soap film crystal is determined by means of the positron annihilation life spectroscopy.
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The finish oil content of PET filament was measured by nuclear magnetic resonance spectroscopy. The application of this analysis method in production process was discussed preliminarily.
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Recent studies using Doppler sonography and near infrared spectroscopy have shown increased perfusion of the middle cerebral artery in patients with chronic cerebrovascular disease given a single infusion of vinpocetine.
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The physical origins of this bathochromic shift are described in detail in molecular spectroscopy texts.
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They analyze a wide variety of chemical compounds, using testing methods such as chromatography or spectroscopy.
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American physicist and corecipient, with Nicolaas Bloembergen of the United States and Kai Manne Börje Siegbahn of Sweden, of the 1981 Nobel Prize for Physics for his work in developing the laser and in laser spectroscopy.
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1H-1H correlation spectroscopy (COSY) and heteronuclear multiple bond correlation
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The mineral content of wine can be measured in fractional parts per billion by modern methods of analysis such as atomic absorption spectroscopy and mass spectrometry.
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His research in spectroscopy and chemical separation laid the groundwork for generations of analytical chemist.
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The difference absorption spectroscopy in both living plasmodium and cell homogenate shows that there is a photopigment which converts reversibly between red and far-red types.
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In comparison to gas chromatography and mass spectroscopy, the use of an electronic nose for detection of lung cancer offers several potential advantages, including ease of administration of the test and portability.
