Leipzig, Germany

Advanced Spectroscopy in Chemistry

Master's
Language: EnglishStudies in English
Subject area: physical science, environment
Qualification: Master
Kind of studies: full-time studies, part-time studies
University website: www.uni-leipzig.de
Chemistry
Chemistry is the scientific discipline involved with compounds composed of atoms, i.e. elements, and molecules, i.e. combinations of atoms: their composition, structure, properties, behavior and the changes they undergo during a reaction with other compounds. Chemistry addresses topics such as how atoms and molecules interact via chemical bonds to form new chemical compounds. There are four types of chemical bonds: covalent bonds, in which compounds share one or more electron(s); ionic bonds, in which a compound donates one or more electrons to another compound to produce ions (cations and anions); hydrogen bonds; and Van der Waals force bonds.
Spectroscopy
Spectroscopy is the study of the interaction between matter and electromagnetic radiation. Historically, spectroscopy originated through the study of visible light dispersed according to its wavelength, by a prism. Later the concept was expanded greatly to include any interaction with radiative energy as a function of its wavelength or frequency. Spectroscopic data are often represented by an emission spectrum, a plot of the response of interest as a function of wavelength or frequency.
Spectroscopy
Plans for the final assault on Big Brother had already been worked out and agreed upon with Mission Control. Leonov would move in slowly, probing at all frequencies, and with steadily increasing power — constantly reporting back to Earth at every moment. When final contact was made, they would try to secure samples by drilling or laser spectroscopy; no one really expected these endeavours to succeed, as even after a decade of study TMA-1 resisted all attempts to analyse its material. The best efforts of human scientists in this direction seemed comparable to those of Stone Age men trying to break through the armour of a bank vault with flint axes.
Arthur C. Clarke, in 2010: Odyssey Two (1982), Ch. 43: Thought Experiment
Spectroscopy
We believe that our application of terahertz technologies can provide a breakthrough in detection and identification of chemicals for homeland-security applications. Our work will further the application of terahertz spectroscopy and transmitters to meet stringent field requirements and applications.
David Olson in: Goodrich Threat Detection Technology Selected by Department of Homeland Security, Goodrich
Spectroscopy
The whole subject of the X rays is opening out wonderfully, Bragg has of course got in ahead of us, and so the credit all belongs to him, but that does not make it less interesting. We find that an X ray bulb with a platinum target gives out a sharp line spectrum of five wavelengths which the crystal separates out as if it were a diffraction grating. In this way one can get pure monochromatic X rays. Tomorrow we search for the spectra of other elements. There is here a whole new branch of spectroscopy, which is sure to tell one much about the nature of an atom.
Henry Moseley in: J. L. Heilbron H. G. J. Moseley: The Life and Letters of an English Physicist, 1887-1915, University of California Press, 1974, p. 205
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