what is spectroscopy?
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A non-invasive analytical technique with an infinitely broad range of applications in plant biotechnology and food processing. It is similar to MRI (Magnetic Resonance Imaging) in that it can be used for medical applications. Non-destructive analysis with this tool can be applied to a wide range of research challenges, including the determination of chemical structure, microimaging and plant metabolism studies.\npbi-ibp.nrc-cnrc.gc.ca/en/media/glossary.htm\n\nAn analytical technique devoted to the identification of the elements and the elucidation of atomic and molecular structure by measurement of the radiant energy absorbed or emitted by a substance in any of the wavelengths of the electromagnetic spectrum in response to excitation by an external energy source.\nwww.fire.org.uk/glossary.htm
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The Beer-Lambert Law forms the basis of Spectroscopy, an analytical tool for measuring concentrations.  Spectrophotometers are instruments used in laboratories to measure concentrations.  The most common is a UV/Vis spectrophotometer.  This instrument passes light(in this case UV or visible light) through a fixed length of solution and measures the radiation absorbed at a particular wavelentgh.  Thus the instrument gives an absobance reading of the solution.  Since the thickness or length of the solution is constant (the solution is placed in a glass cuvette, a little glass square that is of known length/thickness) from the Beer-Lambert law, the absorption is proportional to the concentration.  So, you prepare say three solutions of chlorophyll that are of three known concentrations (a high, middle and low standard) and measure their absorbance.  Now you measure the absorbance of your unknown sample.  Finally you use the mathematics of linear regression, to extrapolate the concentration of your unknown sample.\n\nThis is the most common and easiest way to measure concentrations in an analytical laboratory.
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Emission lines of different wavelength depending upon what is being studied.
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sorry friend, but this not a question with a simple answer. yes, i know somebody who can interpret nmr spectra, but it involves a lot of computation. there are even whole journals devoted to it, so if it is urgent, you have lost.
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You're right, spectroscopy is the proper method...Below you'll find a link to a quick and simple explanation.
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They're the same. The electromagnetic spectrum is a continuous, infinite range of wavelength of electromagnetic energy. Visible light is a small portion of the em spectrum is represented by waves of length 400-700 nm. Try google visible spectrum...
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Click on the source link.  The site contains the absorption as well as fluorescence spectra.
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In short, no.\n\nAs a science, chemistry is usually separated into four main categories: organic, inorganic, physical, and analytical.  Analytical chemistry deals with detection, structural elucidation of chemical compounds, and instrumentation.  \n\nA chemical analysis is used to refer to a battery of tests that are performed on a given sample.
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Spectroscopy is the branch of science (Physics) concerned with production and analysis of spectra (analogous range of radiations in order of wavelength), produced by a spectrophotometer.\n\nIn emission spectroscopy, a sample is normally excited by thermal energy. Atoms in the sample absorb thermal energy causing outer orbital electrons to become excited from their ground state to higher orbital energy level. After a short lifetime (10{+-}{+6} to 10{+-}{+9}s), the excited electrons return to the ground state. Simultaneously, electromagnetic radiations (normally in the form of light in the UV-visible region) are emitted. The emitted radiations are analysed by means of spectrograph, which separates various wavelengths.\n\nIn Plasma Emission Spectroscopy, the exciting medium/ agent is plasma. The term `Plasma' in Physics means a very hot/ high temperature ionised gas, sometimes described as the fourth state of matter (the other three being solid, liquid and gas). In this method of sample analysis, a `Plasma Source' is the basic component. (Plasma Emission Spectroscopy is similar to Optical Emission Spectroscopy in principles but differs in mechanism. In OES, the sample excitation is done by electric arc or spark mechanism in the temperature range of 3000-5000 degrees Celcius. In PES, the temperature range is 7000-9000 {+o}C.\n\nThe sample solution or the analyte solution is supplied to the `Plasma Source' by a `Nebulizer' assembly. On reaching the high temperature (7000-9000 degrres Celsius) plasma, the solution attains this high temperature and all types of molecular bonds break down. Free atoms or ions (electrically charged atoms) are produced, which emit their characteristic spectra. A `Monochromator' assembly is in position after `Plasma Source' for isolation of the desired analyte line (or spectrum). The intensity of an analyte line is directly proportional to the concentration of that particular analyte (element being analysed) in the sample solution. The `detector & read-out' assembly gives us the concentration of the particular element in the sample. Modern instruments being computer controlled, the analysis is very fast and needs little operator skill. (Depending on the technique of production, plasma may be of three classes — viz., D.C. argon plasma, Microwave plasma and Inductively coupled plasma (ICP). The ICP is the most widely used due to mechanical simplicity and operational advantages.\n\nTherefore, plasma Emission Spectroscopy is the method of analysis of various elements in a sample, by passing the sample/ analyte solution through a plasma (high temperature ionised gas) source, thereby exciting the outer orbital electrons of the analyte with simultaneous emission of electromagnetic radiations (in the form of lights), which are analysed by means of a spectrograph, which separates various wavelengths of analytes in the sample.
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Its a chemistry term to describe resonant bonds between atoms in molecules
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it is a series of lines, due primarily to the presence of hydrogen and helium and to lesser extent carbon, nitrogen and a few others. the most important lines show up in the visible part of the EM spectrum.
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By the process called spectroscopy. It is the separation of light spectrum by different methods (a prism more often). Now, a type of atom, like helium for example, will absorb a small wave light in the light spectrum (this appearing to us like a thin, black, vertical line). Every atom type absorbs different light Wave. By knowing the spectrum of every single atom, we can superpose them and "see" who's`s who, only by having sun light
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Peter B has it right -- atomic absorption will do elemental analysis.\n\nAtomic emission spectroscopy is another tack, though a bit more challenging.
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Spectrophotometer is a photometer (a device for measuring light intensity) that can measure intensity as a function of the color, or more specifically, the wavelength of light. There are many kinds of spectrophotometers. Among the most important distinctions used to classify them are the wavelengths they work with, the measurement techniques they use, how they acquire a spectrum, and the sources of intensity variation they are designed to measure. Other important features of spectrophotometers include the spectral bandwidth and linear range.\n\nFollow the link for more information.\n\nhttp://en.wikipedia.org/wiki/Spectrophotometer
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"Quantum mechanics is a physical science dealing with the behaviour of matter and waves on the scale of atoms and subatomic particles. It also forms the basis for the contemporary understanding of how large objects such as stars and galaxies, and cosmological events such as the Big Bang, can be analyzed and explained. Its success is due to its accurate prediction of the physical behaviour of systems, including systems where Newtonian mechanics fails. This difference between the success of classical and quantum mechanics is most often observed in systems at the atomic scale or smaller, or at very low or very high energies, or at extremely low temperatures. Quantum mechanics is the basis of modern developments in chemistry, molecular biology, and electronics, and the foundation for the technology that has transformed the world in the last fifty years."
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Quantum mechanics is a fundamental physical theory that replaces Newtonian mechanics and classical electromagnetism at the atomic and subatomic levels and is the underlying framework of many fields of physics and chemistry, including condensed matter physics, quantum chemistry, and particle physics. Often, it is the answer to questions when general relativity fails.
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the study of the orbitals, waves and electron probabilities.....wavelengths, frequencies when it comes to an atom, ionization, distribution..etc...quite interesting topic