Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Discharges, atomic spectroscopy

Broekaert, J.A.C. Glow discharge atomic spectroscopy. Appl. Spectrosc. 1995, 49 (7), 12A. [Pg.523]

Broekaert, J.A.C. Glow discharge atomic spectroscopy. Appl. Spectrosc. 1995,49 (7), 12A. (Reprinted in Focus on Analytical Spectrometry, Holcombe, J.A., Hieftje, G.M., Majidi, V., Eds. Society for Applied Spectroscopy Frederick, MD, 1998 (www.s-a-s.org).)... [Pg.710]

Inductively Coupled and Microwave Induced Plasma Sources for Mass Spectrometry 4 Industrial Analysis with Vibrational Spectroscopy 5 Ionization Methods in Organic Mass Spectrometry 6 Quantitative Millimetre Wavelength Spectrometry 7 Glow Discharge Optical Emission Spectroscopy A Practical Guide 8 Chemometrics in Analytical Spectroscopy, 2nd Edition 9 Raman Spectroscopy in Archaeology and Art History 10 Basic Chemometric Techniques in Atomic Spectroscopy... [Pg.321]

Investigation of atomic spectra yields atomic energy levels. An important chemical application of atomic spectroscopy is in elemental analysis. Atomic absorption spectroscopy and emission spectroscopy are used for rapid, accurate quantitative analysis of most metals and some nonmetals, and have replaced the older, wet methods of analysis in many applications. One compares the intensity of a spectral line of the element being analyzed with a standard line of known intensity. In atomic absorption spectroscopy, a flame is used to vaporize the sample in emission spectroscopy, one passes a powerful electric discharge through the sample or uses a flame to produce the spectrum. Atomic spectroscopy is used clinically in the determination of Ca, Mg, K, Na, and Pb in blood samples. For details, see Robinson. [Pg.70]

During the 20-plus years that mass spectrometrists lost interest in glow discharges, optical spectroscopists were pursuing these devices both as line sources for atomic absorption spectroscopy and as direct analytical emission sources [6-10]. Traditionally, inorganic elemental analysis has been dominated by atomic spectroscopy. Since an optical spectrum is composed of lines corre-... [Pg.32]

Many other types of atomization devices have been used in atomic spectroscopy. Gas discharges operated at reduced pressure have been investigated as sources of atomic emission and as ion sources for mass spectrometry. The glow discharge is generated between two planar electrodes in a cylindrical glass tube filled with gas to a pressure of a few torr. High-powered lasers have been employed to ablate samples and to cause laser-induced breakdown. In the latter technique, dielectric breakdown of a gas occurs at the laser focal point. [Pg.854]

Line source In atomic spectroscopy, a radiation source that emits sharp atomic lines characteristic of the analyte atoms see hollow-cathode lamp and electrodeless discharge lamp. [Pg.1111]

Bengtson A. (1985) A contribution to the solution of the problem of quantification in surface analysis work using glow discharge atomic emission spectroscopy, Spectrochim Acta, Part B 40 631-639. [Pg.336]

GDMS Glow Discharge Mass Spectroscopy Sample forms the cathode for a D.C. glow discharge Sputtered atoms ionized in plasma Ions - analyzed in mass spectrometer 0.1-100 pm 3-4 mm (Bulk) trace element analysis deleclion limit sub-ppb 9,10... [Pg.1967]

Fig. 12.27 Schematic diagram of a discharge cell for RF-glow discharge atomic emission spectroscopy. Fig. 12.27 Schematic diagram of a discharge cell for RF-glow discharge atomic emission spectroscopy.
For the spectroscopy of atoms or ions in gas discharges, optogalvanic spectroscopy (Sect. 1.5) is a very convenient and experimentally simple alternative to fluorescence detection. In favorable cases it may even reach the sensitivity of excitation spectroscopy. For the distinction between spectra of ions and neutral species velocity-modulation spectroscopy (Sect. 1.6) offers an elegant solution. [Pg.77]

Rgure 1 A TMqio tyP resonant cavity. The position of the coupling loop and the viewing and cooling ports are shown. The discharge tube is centered in the holes at the top and bottom faces of the cavity. (Matousek JP, Orr BJ, and Selby M (1984) Microwave-induced plasmas Implementation and application. Reviews in Analytical Atomic Spectroscopy 7 275-314.)... [Pg.226]

Bogaerts, A., Gijbels, R. (1998) Fundamental aspects and applications of glow discharge spectrometric techniques. Spectrochimica Acta Part B Atomic Spectroscopy, 53, 1-A2. [Pg.932]

Winchester, M.R., Payiing, R. (2004) Radio-frequency glow discharge spectrometry a critical review. Spectrochimica Acta Part B Atomic Spectroscopy, 59, 607-666. [Pg.932]

Battagliarin, M., Sentimenti, E., Scattolin, R. (1995) An innovative sample preparation procedure for trace and ultra-trace analysis on non-conducting powders by direct current giow discharge mass spectrometry. Spectrochimica Acta Part B Atomic Spectroscopy, 50,13-25. [Pg.932]

Beyer, C., Feldmann, I., Gilmour, D., Hoffmann, V, Jakubowski, N. (2002) Development and analytical characterization of a Grimm-type glow discharge ion source operated with high gas flow rates and coupled to a mass spectrometer with high mass resolution. Spectrochimica Acta Part B Atomic Spectroscopy, 57,1521-1533. [Pg.933]

Winchester, M.R. Payling, R. Radio-Frequency Glow Discharge Spectrometry A Critical Review. Spectrochimica Acta, Part B Atomic Spectroscopy 2004, 59B, 607-666. [Pg.713]


See other pages where Discharges, atomic spectroscopy is mentioned: [Pg.128]    [Pg.242]    [Pg.243]    [Pg.247]    [Pg.690]    [Pg.262]    [Pg.275]    [Pg.260]    [Pg.211]    [Pg.315]    [Pg.489]    [Pg.39]    [Pg.371]    [Pg.461]    [Pg.416]    [Pg.1555]    [Pg.1561]    [Pg.300]    [Pg.225]    [Pg.567]    [Pg.354]    [Pg.920]    [Pg.158]   
See also in sourсe #XX -- [ Pg.629 , Pg.670 ]




SEARCH



Atomic spectroscopy

© 2024 chempedia.info