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Topic: Inductively coupled plasma


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  Inductively coupled plasma - Wikipedia, the free encyclopedia
An inductively coupled plasma (ICP) is a type of plasma source in which the energy is supplied by electrical currents which are produced by electromagnetic induction, that is, by time-varying magnetic fields.
Another benefit of ICP discharges is that they are relatively free of contamination because the electrodes are completely outside the reaction chamber.
In a capacitively coupled plasma (CCP), in contrast, the electrodes are placed inside the reactor and are thus exposed to the plasma and subsequent reactive chemical species.
en.wikipedia.org /wiki/Inductively_coupled_plasma   (249 words)

  
 ICP-MS - Wikipedia, the free encyclopedia
It is based on coupling together an inductively coupled plasma as a method of producing ions (ionization) with a mass spectrometer as a method of identifying and detecting the ions.
ICP (Inductively Coupled Plasma) - this is a high temperature plasma (partly ionised argon) sustained with a radiofrequency electric current, which acts to produce ions.
MS (Mass Spectrometry) the ions from the plasma are extracted through a series of cones into a mass spectrometer, usually a quadrupole.
en.wikipedia.org /wiki/ICP-MS   (409 words)

  
 [No title]   (Site not responding. Last check: 2007-09-10)
Plasmas, which are composed of positive ions, negative ions and neutral particles, are quite different from gases of normal conditions in terms of electric and thermal properties such that the plasmas are called the fourth state of material.
coupled plasma configured in a simple structure without a permanent magnet installed at a lateral wall of a chamber to prevent charged particles in the plasmas from colliding with the lateral wall in the chamber and to generate a high density of plasmas.
plasma configured with an inductively coupled coil uniformly arranged on the lateral wall of a chamber to allow power applied to the inductively coupled coil to be adjusted, thereby enabling to improve the flexibility of the etching or deposition process.
www.wipo.int /cgi-pct/guest/getbykey5?KEY=03/67642.030814&ELEMENT_SET=DECL   (3077 words)

  
 CHP - Inductively-Coupled Plasma   (Site not responding. Last check: 2007-09-10)
An inductively coupled plasma (ICP) is a very high temperture (7000-8000K) excitation source that efficiently desolvates, vaporizes, excites, and ionizes atoms.
ICP sources are used to excite atoms for atomic-emission spectroscopy and to ionize atoms for mass spectrometry.
The plasma torch consists of concentric quartz tubes, with the inner tube containing the sample aerosol and Ar support gas and the outer tube containing an Ar gas flow to cool the tubes (see schematic).
www.chem.vt.edu /chem-ed/spec/atomic/emission/icp.html   (195 words)

  
 [No title]   (Site not responding. Last check: 2007-09-10)
An inductively coupled plasma etching apparatus as recited in claim 1, wherein the chamber further includes: a chamber lid, the chamber lid being configured to have attached thereto the metal plate and the coil, the chamber lid being attached by hinges that enable opening and closing of the chamber lid.
An inductively coupled plasma etching apparatus as recited in claim 11, wherein the externally applied peak-to-peak voltage is adjustable so as to reduce sputtering of the inner surface of the window while substantially simultaneously preventing deposition of etch byproducts on the inner surface of the window.
An inductively coupled plasma etching apparatus as recited in claim 11, wherein the chamber further includes: a chamber lid, the chamber lid being configured to have attached thereto the metal plate and the coil, the chamber lid being attached by hinges that enable opening and closing of the chamber lid.
www.wipo.int /cgi-pct/guest/getbykey5?KEY=01/75930.011011&ELEMENT_SET=DECL   (7006 words)

  
 Inductively Coupled Plasma (ICP)
Inductively Coupled Plasma (ICP) is an analytical technique used for the detection of trace metals in environmental samples.
ICP hardware is designed to generate plasma, which is a gas in which atoms are present in an ionized state.
Inductively coupled plasma-mass spectrometry is unique among the flame and plasma spectroscopy techniques in the ability to discriminate between the mass of the various isotopes of an element where more than one stable isotope occurs.
ewr.cee.vt.edu /environmental/teach/smprimer/icp/icp.html   (1704 words)

  
 Elemental Analysis Incorporated - Inductively Coupled Plasma Mass Spectrometry - ICP-MS   (Site not responding. Last check: 2007-09-10)
Within the center of this coil is a quartz plasma torch where the plasma is initially formed from the seeding the of argon gas with a spark from a Telsa unit (a device similar to a spark plug).
These concentrations of electrons in the plasma reach equilibrium very quickly, after which the plasma will remain “lit” as long as the RF field in maintained and a constant supply of argon gas is injected into the plasma.
The plasma torch is designed in such a manner that the sample is then injected directly into the heart of the plasma.
www.elementalanalysis.com /icp   (1913 words)

  
 Inductively Coupled Plasma Emission
Inductively Coupled Plasma Emission - Mass Spectrometry (Laser Ablation) A general description of the method.
Inductively coupled plasma emission was developed in the 1970's as a sensitive multielement analytical method with potential to make trace determinations at the ppb level and below.
In short, the concept of the method is that elements in solution are aspirated in to a nebulizer which atomizes the solution in a spray carried by argon gas.
www.chem.tamu.edu /services/naa/ICP-MS.htm   (223 words)

  
 Inductively coupled plasma AES
Inductively coupled plasma (ICP) emission spectrometry is a technique that is used primarily for the determination of trace concentrations of metals.
Plasma sources, in general, have several benefits over sources used in flame emission spectroscopy, with the main advantage being the fact they are highly energetic atomization sources.
Specify the concentration and the identity of the elements in your unknown.
www.chembio.niu.edu /Electrochem/lab6.htm   (778 words)

  
 Chemistry 101: Inductively Coupled Plasma
Inductively coupled plasma (ICP) spectrometry is one such technique.
ICP can be used to identify any chemical element except argon (because argon is the carrier gas).
Often, ICP instruments are linked with mass spectrometers  or atomic emission spectrophotometers (which are similar to AAS instruments).
www.acs.org /portal/a/c/s/1/feature_tea.html?id=c373e9fd0d68583a8f6a4fd8fe800100   (641 words)

  
 Inductively Coupled Plasma   (Site not responding. Last check: 2007-09-10)
An inductively coupled plasma (ICP) is a very high temperature (7000-8000 K) excitation source that efficiently desolvates, vaporizes, excites, and ionizes atoms.
Instrumentation -- The sample is nebulized and entrained in the flow of plasma support gas, which is typically Argon (Ar).
The plasma torch consists of concentric quartz tubes.
www.cartage.org.lb /en/themes/Sciences/Chemistry/Analyticalchemistry/MethodsInstrumentation/Inductively/Inductively.htm   (232 words)

  
 Session MPA - Inductively Coupled Plasmas Poster Session.
The plasma source is a modification of the GEC reference cell with the upper electrode replaced by a five turn, pancake coil and a quartz vacuum interface.
In this study, carbon radical in an inductively coupled RF (13.56 MHz) CO plasma was measured by using ultraviolet absorption spectroscopy with carbon hollow cathode lamp for the first time.
We have found that a collimated plasma is produced when the DC magnetic field in the diffusion region is higher than that in the plasma source.
flux.aps.org /meetings/BAPSGEC96/abs/S70.html   (3564 words)

  
 PLASMA SOURCE : Encyclopedia Entry
Excitation of a plasma requires partial ionisation of neutral atoms and/or molecules of a medium.
If at least as many charge carriers are created per time unit as recombine, the plasma can be sustained.
Plasma sources have numerous technical applications, for instance in light generation and plasma processing of materials.
www.bibleocean.com /OmniDefinition/Plasma_source   (122 words)

  
 Wiley::Inductively Coupled Plasma Mass Spectrometry
Inductively Coupled Plasmas in Analytical Atomic Spectrometry, 2nd Revised and Enlarged Edition (Hardcover)
Inductively Coupled Plasma Mass Spectrometry equips students, laboratory managers, and professionals with current, comprehensive coverage of:
Providing an up-to-date, hands-on ICPMS tutorial, Inductively Coupled Plasma Mass Spectrometry is an indispensable working resource for analytical chemists and spectroscopists.
www.wiley.com /WileyCDA/WileyTitle/productCd-0471186201.html   (370 words)

  
 Final Report on Jobin Yvon Contained Inductively Coupled Plasma Emission Spectrometer (ICP-ES)
The instrument is an Inductively Coupled Plasma Emission Spectrometer (ICP-ES) with a 1.5 kWatt 40 MHz solid-state generator contained in a radiological fume hood.
There were no stipulations for ICP operating conditions in the performance tests; thus, the instrument was run with slits at maximum during testing.
ICP sensitivity and interference is significantly hampered by operation in this mode.
sti.srs.gov /fulltext/tr2003063/tr2003063.html   (2205 words)

  
 Institute of Materials Processing - Inductively Coupled Plasma Emission Spectrophotometer (ICP)   (Site not responding. Last check: 2007-09-10)
The ICP spectrophotometer utilizes plasma to excite elemental electrons which produce photons unique to each element.
An inductively coupled plasma source atomizes and excites even the most refractory elements with high efficiency.
With this ICP, several elements can be determiend simultaneously without the need for repeated aspirations, adjustment of instrument parameters and tracking of the samples.
www.imp.mtu.edu /matchar/Induc_Coup_Plas.html   (161 words)

  
 Trion Technology - Apollo Inductively Coupled Plasma Stripper Tool   (Site not responding. Last check: 2007-09-10)
The Apollo is an inductively coupled plasma stripper specifically designed to address the complex issues associated with feature sizes below 0.5 microns on ICs.
Each process module incorporates a unique inductively coupled reactor that strips resist with high strip rates and low damage to the wafer.
It allows for higher plasma densities as power is transferred into the bulk plasma via the magnetic field resultant from inductive coupling.
www.triontech.com /products/apollo.html   (854 words)

  
 Plasma uniformity in high-density inductively coupled plasma tools
A two-dimensional (r, z) fluid model is used to study plasma transport in inductively coupled plasmas (ICPS).
Radial plasma uniformity has been studied in both high (R/L=2.5) and low (R/L=1) aspect ratio ICP reactors driven with external planar or cylindrical coils.
The effect of neutral gas pressure on plasma uniformity is presented for Ar discharges at 5 and 20 mTorr.
stacks.iop.org /0963-0252/4/36   (282 words)

  
 inductively coupled plasma spectrometry   (Site not responding. Last check: 2007-09-10)
Nature of the plasma, (plasma formation, properties, operating parameters, excitation mechanisms).
ICP operation (spectral line selection, line prominence, line usefulness, operating conditions).
Interactive ICP is one of a range of training packages for analytical chemistry: also available are Interactive GC, Adv.GC, AAS, HPLC, Adv.
www.chemsw.com /10095.htm   (310 words)

  
 Curing Quantum Dots using Inductively Coupled Argon Plasma
After 3 min plasma exposure, the PL peak intensity of QDs is increased to 2.7 times of the original (see Fig.
Furthermore, the PL peak wavelength blueshift is suppressed by 26 nm in the ICP treated sample in comparison to that in the annealed-only sample.
Since the plasma treatment is implemented at near room temperature, this method should be further explored for recovering other types of QD materials which are not tolerable to high temperature process.
www.nsti.org /Nanotech2006/showabstract.html?absno=401   (744 words)

  
 Chemical Solutions: Ultra Trace Level Elemental Analysis ICP-MS Inductively Coupled Plasma-Mass Spectrometry
Through the technology of inductively coupled plasma-mass spectrometry (ICP-MS), CSL has performed analyses for the natural product, pharmaceutical, chemical, agricultural, and environmental sectors.
ICP-MS: Inductively Coupled Plasma-Mass Spectrometry - ICP-MS is a trace element technique, which encompasses several techniques into one.
ICP/MS: Inductively Coupled Plasma-Mass Spectrometry - ICP-MS is a trace element technique, which encompasses several techniques into one.
www.chemicalsolutionsltd.com   (901 words)

  
 Inductively coupled plasma mass spectrometry: fundamental studies
Inductively coupled plasma mass spectrometry (ICP-MS) is in focus in this thesis.
Fundamental studies of ICP double focusing magnetic sector MS are presented, and some possible applications are discussed.
One of the recent innovations for increasing the sensitivity of ICP-MS is to use a Pt-shield inserted between the coil and the torch, which can be grounded.
epubl.luth.se /1402-1757/2000/48   (165 words)

  
 Wiley::Practical Inductively Coupled Plasma Spectroscopy   (Site not responding. Last check: 2007-09-10)
This text provides a valuable and readily accessible, practical introduction to inductively coupled plasma spectroscopy, serving both as a basic textbook for taught courses and also as a ‘self-study’ resource for those pursuing ‘open learning/distance learning’ forms of study.
Sample preparation techniques for inductively coupled plasma spectroscopy, including those used for aqueous and solid samples, plus details of the various extraction procedures that can be used to prepare samples
Practical Inductively Coupled Plasma Spectroscopy will be invaluable to those students studying at Foundation and BTEC (HNC and HND) levels, and for those pursuing BSc, MChem, MSc and MRes courses in analytical chemistry, as well as subsidiary courses in life, environmental and food science.
eu.wiley.com /WileyCDA/WileyTitle/productCd-0470093498.html   (303 words)

  
 Inductively Coupled Plasma/Mass Spectrometer
The Perkin-Elmer Elan 5000 ICP-MS (Inductively Coupled Plasma-Mass Spectrometer) provides trace analytical analysis with results 10 to 1,000 times lower than current methods.
The ICP-MS utilizes an argon ICP to generate singly charged atoms which are then directed into a quadruple mass spectrometer.
The mass spectrometer's function is to separate the ions according to their mass-to-charge ratio.
www.chemicalonline.com /Content/ProductShowcase/product.asp?DocID={A2EEE98B-A0EC-11D4-8C6E-009027DE0829}&VNETCOOKIE=NO   (199 words)

  
 Table of contents for Practical inductively coupled plasma spectroscopy   (Site not responding. Last check: 2007-09-10)
Sample introduction for inductively coupled plasmas 3.1 Introduction 3.2 Nebulizers 3.3 Spray Chambers and desolvation systems 3.4 Discrete sample introduction 3.5 Continuous sample introduction 3.6 Hydride and cold vapour techniques 4.
The inductively coupled plasma and other sources 4.1 Introduction 4.2 Inductively coupled plasma 4.3 Direct current plasma 4.4 Microwave induced plasma 4.5 Glow discharge 5.
Inductively coupled plasma - atomic emission spectroscopy 5.1 Fundamentals of spectroscopy 5.1.1 Origins of atomic spectra 5.1.2 Spectral line intensity 5.1.3 Spectral line broadening 5.2 Plasma spectroscopy 5.3 Spectrometers 5.3.1 Sequential 5.3.2 Simultaneous 5.4 Detectors 5.5 Interferences 6.
www.loc.gov /catdir/toc/ecip057/2005004183.html   (326 words)

  
 Inductively Coupled Plasma - Compare Prices, Reviews and Buy at NexTag - Price - Review
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Inductively Coupled Plasma Emission Spectroscopy, Part II: Applications and Fundam...
Inductively Coupled Plasma Emission Spectroscopy: Methodology, Instrumentation, an...
www.nextag.com /inductively-coupled-plasma/search-html   (111 words)

  
 Inductively Coupled Plasma Mass Spectrometer - UCSB Geological Sciences
Inductively Coupled Plasma Mass Spectrometer - UCSB Geological Sciences
A Finnigan MAT Element2 sector Inductively Coupled Plasma Mass Spectrometer (ICP-MS) with fast-scanning magnet was installed in September 2000 and has become the main instrument for trace metal analysis in our laboratory.
Contact Georges Paradis for more information on the Inductively Coupled Plasma Mass Spectrometer, current research, and the new Finnigan MAT Element2 sector ICP-MS.
www.geol.ucsb.edu /faculty/lea/ICPMS.html   (315 words)

  
 Instabilities in oxygen plasma
A reproducible instability, which appears similar to those reported previously, has been observed and studied in a low-pressure 13.56 MHz inductively coupled gaseous electronics conference rf cell operating in oxygen.
The magnitude and frequency of the modulations is sensitive to the plasma operating conditions and the modulation amplitude has been observed to be as high as 40%.
Time-resolved measurements of the electron energy distribution functions and charged particle densities indicate that at all phases of the instability, the plasma parameters remain close to those of the inductive mode.
stacks.iop.org /0963-0252/12/265   (370 words)

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