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This section does not belong here. It is blatently commercial, gives no details concerning the algorithm and is unclear, to say the least, as to what it does and when it can be applied. It is much too specialised to be in an article which introduces a very broad range of techniques Petergans 10:23, 24 March 2007 (UTC)
Mass spectra don't really fit into this definition of spectrosopy. Is this a problem?
On the surface, it would seem so. But, according to Einstein's famous identity, E=mc^2, mass and energy are the same thing. one could, in principle, plot a mass spectrum in energy units rather than in mass units. That this is not done in practice does not overshadow the interchangeability of the units. Particle physicists, for instance, do you energy-derived units as a measure of mass--speaking of how many electron-volts a particle masses, for instance.
Mass spectroscopy is significantly different from the other spectrometers on the page. MS measures the deflection, dependant on mass, of ions in a magnetic field. The plots are of discrete ion-mass (the deflection), against how many of the corresponding atoms are present in the sample (intensity). You couldn't legimately ever put MS results in to an energy/frequency graph. I think it should be treated as an exception. -- sodium
The main difference between mass spectroscopy and the other the types described in the page is that MS is not light spectroscopy. It doesnt involve energy transitions between different quantum states.
Mass Spectrometry is not spectroscopy becuase it is not based on the physical principles of light-matter interactions. Stephen ( talk) 17:17, 14 June 2009 (UTC)
I've made an attempt to make the haphazard list of examples a bit more structured, but I'm still not completely happy with the result. Ideally, the words in the name of a branch (e.g., X-ray electron spectroscopy), should each fit under one of the four classification schemes. However, in this example, X-ray refers to the frequency parameter AND the measurement process and electron refers to the measurable quantity AND the physical process. Merging into two general classifications does not work, because 'Fourier transform spectroscopy' wouldn't fit.
I'm not sure either that it was a good idea to move everything under electromagnetic spectroscopy to a separate page.
Any suggestions? -- Hankwang 19:03, 17 Mar 2004 (UTC)
There is no mention of the spectroscopy of light reflected from a surface (eg of a planet, moon or asteroid) or of how this can be used to determine the chemical composition of the surface. -- Tediouspedant ( talk) 20:24, 2 October 2009 (UTC)
It is not necessary to include the history of spectra on this page. Bensaccount 02:32, 22 Mar 2004 (UTC)
I agree, the introduction is too short but also inaccurate. It describes spectrometry independent of electromagnetic references and then goes on to define it again with reference to "light!" It should be one or the other, or the distinction should be more clear! I think one section for EM spectroscopy and another for "other" types would make things far more clear and "comprehensible to nonspecialists", regardless of exact definitions. Also considering the bulk of the material here (and elsewhere) concerns EM spectroscopy, it would make more sense to me. Biledemon 14:40, 12 July 2006 (UTC)
My wife, a biochem major, was looking for a definition of SPR spectroscopy here, but didn't find one. Is it under a different name, or does it need to be added to the article? Jwrosenzweig 01:32, 9 Mar 2005 (UTC)
Should the newly inserted link to Emission Spectroscopy be redirected to the Photoemission spectroscopy article ? H Padleckas 04:27, 14 Jun 2005 (UTC)
If a substance is sufficiently hot, will the thermal-kinetic energy of its component atoms smear out its spectral lines? However, according to Boltzmann_distribution#typical speed, a gas would have to be circa 1e15 K for this to be a significant problem, at which point the gas will not be an ideal gas. CS Miller 19:25, July 13, 2005 (UTC)
"Atomic absorption spectroscopy (often called AA)"
I would've thought that atomic absorption spectroscopy was often called AAS, not AA.
--thanks
I just started a new project for Spectroscopy. Please contribute if interested. -- Tjr9898 04:00, 21 July 2006 (UTC)
I feel that the definition of spectroscopy is too narrrow. Spectroscopy is a very broad topic, so I think the introduction should concentrate on embracing this, and not on narrowing the definition.
Further, if we list all of the things that are called spectroscopy, then the definition should fit them all.
Perhaps it could be something along the lines of: Spectroscopy is the observation of the properties of light, matter and wavelike phenomena. -- 150.203.177.218 02:18, 16 October 2006 (UTC)
The issue of spectroscopy versus spectrometry has come up in several places. I think that wikipedia needs a definition of spectrometry. This could be a short article or incorporated into this one. There are many spectroscopic techniques that have spectrometric variants but there are also spectrometric techniques that are not spectroscopic at all, such as mass spectrometry. I fully expect this to be a difficult and confusing issue for editors and potentially an issue of debate but I think that readers are equally as confused. By the way what is here in terms of a definition is pretty good but too brief and hidden. I would suggest a short article and a smaller section here with a link to it. When the spectrometric variants are discussed here they should be designated as a form of spectrometry but that derives from spectroscopic phenomena. Of course there are many problems distinguishing between these since scientists have not always done a good job of distinguishing and maintaining internally consistent definitions. There will be some cases where there is overlap or cases where a spectrometric technique is named as a spectroscopic technique etc. In these cases we will need to have strong links between these two articles and address the subtleties and misnomers without defying current usage and consensus. I thought I should get some input here before being too bold.-- Nick Y. 18:46, 14 December 2006 (UTC)
The main image of this article is probably soon deleted from Commons, as it is licensed under a NC license. Bryan 20:35, 30 January 2007 (UTC)
This information was taken excised from the article. It is placed here in case some of it deserves to be readded to this or another article. Srnec 22:44, 5 April 2007 (UTC)
Impedance spectroscopy is a study of frequency response in alternating current.
There should be some information on Joseph von Fraunhofer in this article.
In modern science spectroscopy can refer to any measurement performed where wavelength or frequency are systematically varied.
Jcwf ( talk) 00:19, 14 January 2008 (UTC)
There are good articles on
circular dichroism and
magnetic circular dichroism. Is there a reason they are not included in the types of spectroscopy or in the list at the end? Woops, circular dichroism is mentioned. Should magnetic be mentioned? It is similar, but has very distinct applications.
BobertWABC (
talk)
22:39, 4 March 2008 (UTC)
Would elements in the same groups on the periodic table (for example: Copper, Silver, and Gold) have similar frequencies of absorption and emission? JeepAssembler ( talk) 20:56, 18 September 2009 (UTC)JeepAssembler JeepAssembler ( talk) 20:56, 18 September 2009 (UTC)
Spectrometry is here defined as being 'used to assess the concentration or amount of a given species'.
A species of what? Clearly not a biological species. Is species even the correct term to use here? It appears also at the end of the article, though as 'atomic or molecular species' which is slightly clearer. Saktoth ( talk) 03:17, 22 January 2010 (UTC)
The section on background is good as far as it goes, but it ignores some related issues. For instance, in absorption spectroscopy it is common to correct for baseline absorption by the solvent system. It should also be noted that the background a broadband detector is responding to can contain stray light at other wavelengths. -- AJim ( talk) 18:49, 21 April 2010 (UTC)
Most of the article length is currently given over to lists of spectroscopic techniques. These lists are spread over three sections and are dealt with in several different ways. I'm tempted to alter these sections significantly, but since the article has developed this way over a long period, I wanted some feedback before implementing a change. My preference would be to use the classification of methods section to sort through a wide range of techniques in a somewhat systematic manner. Any details of a particular topic, though, would be reserved for that topic's page. The entire Common Types section would be cut. The Other Types section would be kept in order to list any additional types of spectroscopy that were not mentioned previously. The See Also section would be cleaned up to no longer include additional types. Is this going too far? This would remove a great deal of the page's current content? ronningt ( talk) 02:14, 28 December 2010 (UTC)
{{
cite book}}
: CS1 maint: multiple names: authors list (
link) This book splits it up into atomic (AAS, AES, ICP-MS, atomic X-ray) and molecular (UV-Vis, fluorescence, IR, Raman, NMR, molecular MS, surface techniques). The atomic section starts off with a discussion of basic spectroscopic instrumentation. This would skew the article toward analytical spectroscopy at the expense of physical, though. Overall, the article should be much more basic and specialized techniques should be moved to sub-articles (e.g. CARS to the Raman article, etc.). --
Kkmurray (
talk)
17:48, 30 December 2010 (UTC)spectroscopy is not just about light or (a bit wider) electromagnetic waves. So, I have changed definition. It is poor, I know. I hope somebody can do better. But do not go back, to wrong electromagnetic-centered definition. — Preceding unsigned comment added by Vniizht ( talk • contribs) 03:46, 31 October 2011 (UTC)
The article is obsolete, is hijacked by optical spectroscopists and plainly useless for users. Definition is laughable, it does not even recognize that in most cases (including optical spectroscopy) the process of interest is not INTERACTION with “radiated energy”, but GENERATION of it. Who feels he is responsible for the article, who keeps in present unhealthy state? — Preceding unsigned comment added by Vniizht ( talk • contribs) 19:08, 22 November 2011 (UTC)
OK. For beginning change definition. It sertanly should not be centered on "interaction", since "generation" is more important. Include mass spectrometry in definition. — Preceding unsigned comment added by Vniizht ( talk • contribs) 01:14, 24 November 2011 (UTC)
Since nobody has posted on talk page in... what 6 years?.. I don't know if anybody will see this.. buuut. I'm about to add tons of awesome stuff to this article.. .and to spectrometer — Preceding unsigned comment added by Popcrate ( talk • contribs) 16:37, 1 February 2017 (UTC)
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It might be interesting and informative to add some commentary about how absorption and emission spectroscopy is utilized in food additives, such as the spectra of titanium dioxide (photo) which is added to powdered sugar for doughnuts due to the emission spectra which makes white powdered sugar adopt a "glow" attribute when added.
The use of such additives can be controversial (Dunkin doughnuts) but it is still a multi-billion dollar (globally) application of spectroscopy utilized in corporate science labs to make foods appealing and to acquire an economic advantage utilizing science -- and human behavioral psychology. SoftwareThing ( talk) 18:59, 7 September 2018 (UTC)
This
level-4 vital article is rated C-class on Wikipedia's
content assessment scale. It is of interest to the following WikiProjects: | ||||||||||||||||||||||||||||||||||||||
|
To-do list for Spectroscopy:
Priority 2
|
This section does not belong here. It is blatently commercial, gives no details concerning the algorithm and is unclear, to say the least, as to what it does and when it can be applied. It is much too specialised to be in an article which introduces a very broad range of techniques Petergans 10:23, 24 March 2007 (UTC)
Mass spectra don't really fit into this definition of spectrosopy. Is this a problem?
On the surface, it would seem so. But, according to Einstein's famous identity, E=mc^2, mass and energy are the same thing. one could, in principle, plot a mass spectrum in energy units rather than in mass units. That this is not done in practice does not overshadow the interchangeability of the units. Particle physicists, for instance, do you energy-derived units as a measure of mass--speaking of how many electron-volts a particle masses, for instance.
Mass spectroscopy is significantly different from the other spectrometers on the page. MS measures the deflection, dependant on mass, of ions in a magnetic field. The plots are of discrete ion-mass (the deflection), against how many of the corresponding atoms are present in the sample (intensity). You couldn't legimately ever put MS results in to an energy/frequency graph. I think it should be treated as an exception. -- sodium
The main difference between mass spectroscopy and the other the types described in the page is that MS is not light spectroscopy. It doesnt involve energy transitions between different quantum states.
Mass Spectrometry is not spectroscopy becuase it is not based on the physical principles of light-matter interactions. Stephen ( talk) 17:17, 14 June 2009 (UTC)
I've made an attempt to make the haphazard list of examples a bit more structured, but I'm still not completely happy with the result. Ideally, the words in the name of a branch (e.g., X-ray electron spectroscopy), should each fit under one of the four classification schemes. However, in this example, X-ray refers to the frequency parameter AND the measurement process and electron refers to the measurable quantity AND the physical process. Merging into two general classifications does not work, because 'Fourier transform spectroscopy' wouldn't fit.
I'm not sure either that it was a good idea to move everything under electromagnetic spectroscopy to a separate page.
Any suggestions? -- Hankwang 19:03, 17 Mar 2004 (UTC)
There is no mention of the spectroscopy of light reflected from a surface (eg of a planet, moon or asteroid) or of how this can be used to determine the chemical composition of the surface. -- Tediouspedant ( talk) 20:24, 2 October 2009 (UTC)
It is not necessary to include the history of spectra on this page. Bensaccount 02:32, 22 Mar 2004 (UTC)
I agree, the introduction is too short but also inaccurate. It describes spectrometry independent of electromagnetic references and then goes on to define it again with reference to "light!" It should be one or the other, or the distinction should be more clear! I think one section for EM spectroscopy and another for "other" types would make things far more clear and "comprehensible to nonspecialists", regardless of exact definitions. Also considering the bulk of the material here (and elsewhere) concerns EM spectroscopy, it would make more sense to me. Biledemon 14:40, 12 July 2006 (UTC)
My wife, a biochem major, was looking for a definition of SPR spectroscopy here, but didn't find one. Is it under a different name, or does it need to be added to the article? Jwrosenzweig 01:32, 9 Mar 2005 (UTC)
Should the newly inserted link to Emission Spectroscopy be redirected to the Photoemission spectroscopy article ? H Padleckas 04:27, 14 Jun 2005 (UTC)
If a substance is sufficiently hot, will the thermal-kinetic energy of its component atoms smear out its spectral lines? However, according to Boltzmann_distribution#typical speed, a gas would have to be circa 1e15 K for this to be a significant problem, at which point the gas will not be an ideal gas. CS Miller 19:25, July 13, 2005 (UTC)
"Atomic absorption spectroscopy (often called AA)"
I would've thought that atomic absorption spectroscopy was often called AAS, not AA.
--thanks
I just started a new project for Spectroscopy. Please contribute if interested. -- Tjr9898 04:00, 21 July 2006 (UTC)
I feel that the definition of spectroscopy is too narrrow. Spectroscopy is a very broad topic, so I think the introduction should concentrate on embracing this, and not on narrowing the definition.
Further, if we list all of the things that are called spectroscopy, then the definition should fit them all.
Perhaps it could be something along the lines of: Spectroscopy is the observation of the properties of light, matter and wavelike phenomena. -- 150.203.177.218 02:18, 16 October 2006 (UTC)
The issue of spectroscopy versus spectrometry has come up in several places. I think that wikipedia needs a definition of spectrometry. This could be a short article or incorporated into this one. There are many spectroscopic techniques that have spectrometric variants but there are also spectrometric techniques that are not spectroscopic at all, such as mass spectrometry. I fully expect this to be a difficult and confusing issue for editors and potentially an issue of debate but I think that readers are equally as confused. By the way what is here in terms of a definition is pretty good but too brief and hidden. I would suggest a short article and a smaller section here with a link to it. When the spectrometric variants are discussed here they should be designated as a form of spectrometry but that derives from spectroscopic phenomena. Of course there are many problems distinguishing between these since scientists have not always done a good job of distinguishing and maintaining internally consistent definitions. There will be some cases where there is overlap or cases where a spectrometric technique is named as a spectroscopic technique etc. In these cases we will need to have strong links between these two articles and address the subtleties and misnomers without defying current usage and consensus. I thought I should get some input here before being too bold.-- Nick Y. 18:46, 14 December 2006 (UTC)
The main image of this article is probably soon deleted from Commons, as it is licensed under a NC license. Bryan 20:35, 30 January 2007 (UTC)
This information was taken excised from the article. It is placed here in case some of it deserves to be readded to this or another article. Srnec 22:44, 5 April 2007 (UTC)
Impedance spectroscopy is a study of frequency response in alternating current.
There should be some information on Joseph von Fraunhofer in this article.
In modern science spectroscopy can refer to any measurement performed where wavelength or frequency are systematically varied.
Jcwf ( talk) 00:19, 14 January 2008 (UTC)
There are good articles on
circular dichroism and
magnetic circular dichroism. Is there a reason they are not included in the types of spectroscopy or in the list at the end? Woops, circular dichroism is mentioned. Should magnetic be mentioned? It is similar, but has very distinct applications.
BobertWABC (
talk)
22:39, 4 March 2008 (UTC)
Would elements in the same groups on the periodic table (for example: Copper, Silver, and Gold) have similar frequencies of absorption and emission? JeepAssembler ( talk) 20:56, 18 September 2009 (UTC)JeepAssembler JeepAssembler ( talk) 20:56, 18 September 2009 (UTC)
Spectrometry is here defined as being 'used to assess the concentration or amount of a given species'.
A species of what? Clearly not a biological species. Is species even the correct term to use here? It appears also at the end of the article, though as 'atomic or molecular species' which is slightly clearer. Saktoth ( talk) 03:17, 22 January 2010 (UTC)
The section on background is good as far as it goes, but it ignores some related issues. For instance, in absorption spectroscopy it is common to correct for baseline absorption by the solvent system. It should also be noted that the background a broadband detector is responding to can contain stray light at other wavelengths. -- AJim ( talk) 18:49, 21 April 2010 (UTC)
Most of the article length is currently given over to lists of spectroscopic techniques. These lists are spread over three sections and are dealt with in several different ways. I'm tempted to alter these sections significantly, but since the article has developed this way over a long period, I wanted some feedback before implementing a change. My preference would be to use the classification of methods section to sort through a wide range of techniques in a somewhat systematic manner. Any details of a particular topic, though, would be reserved for that topic's page. The entire Common Types section would be cut. The Other Types section would be kept in order to list any additional types of spectroscopy that were not mentioned previously. The See Also section would be cleaned up to no longer include additional types. Is this going too far? This would remove a great deal of the page's current content? ronningt ( talk) 02:14, 28 December 2010 (UTC)
{{
cite book}}
: CS1 maint: multiple names: authors list (
link) This book splits it up into atomic (AAS, AES, ICP-MS, atomic X-ray) and molecular (UV-Vis, fluorescence, IR, Raman, NMR, molecular MS, surface techniques). The atomic section starts off with a discussion of basic spectroscopic instrumentation. This would skew the article toward analytical spectroscopy at the expense of physical, though. Overall, the article should be much more basic and specialized techniques should be moved to sub-articles (e.g. CARS to the Raman article, etc.). --
Kkmurray (
talk)
17:48, 30 December 2010 (UTC)spectroscopy is not just about light or (a bit wider) electromagnetic waves. So, I have changed definition. It is poor, I know. I hope somebody can do better. But do not go back, to wrong electromagnetic-centered definition. — Preceding unsigned comment added by Vniizht ( talk • contribs) 03:46, 31 October 2011 (UTC)
The article is obsolete, is hijacked by optical spectroscopists and plainly useless for users. Definition is laughable, it does not even recognize that in most cases (including optical spectroscopy) the process of interest is not INTERACTION with “radiated energy”, but GENERATION of it. Who feels he is responsible for the article, who keeps in present unhealthy state? — Preceding unsigned comment added by Vniizht ( talk • contribs) 19:08, 22 November 2011 (UTC)
OK. For beginning change definition. It sertanly should not be centered on "interaction", since "generation" is more important. Include mass spectrometry in definition. — Preceding unsigned comment added by Vniizht ( talk • contribs) 01:14, 24 November 2011 (UTC)
Since nobody has posted on talk page in... what 6 years?.. I don't know if anybody will see this.. buuut. I'm about to add tons of awesome stuff to this article.. .and to spectrometer — Preceding unsigned comment added by Popcrate ( talk • contribs) 16:37, 1 February 2017 (UTC)
Hello fellow Wikipedians,
I have just modified one external link on Spectroscopy. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:
When you have finished reviewing my changes, you may follow the instructions on the template below to fix any issues with the URLs.
This message was posted before February 2018.
After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than
regular verification using the archive tool instructions below. Editors
have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the
RfC before doing mass systematic removals. This message is updated dynamically through the template {{
source check}}
(last update: 5 June 2024).
Cheers.— InternetArchiveBot ( Report bug) 23:43, 21 January 2018 (UTC)
It might be interesting and informative to add some commentary about how absorption and emission spectroscopy is utilized in food additives, such as the spectra of titanium dioxide (photo) which is added to powdered sugar for doughnuts due to the emission spectra which makes white powdered sugar adopt a "glow" attribute when added.
The use of such additives can be controversial (Dunkin doughnuts) but it is still a multi-billion dollar (globally) application of spectroscopy utilized in corporate science labs to make foods appealing and to acquire an economic advantage utilizing science -- and human behavioral psychology. SoftwareThing ( talk) 18:59, 7 September 2018 (UTC)