Spectrocopy Definition and 69 Threads

  1. NMR Spectroscopy by Prof. Hanudatta S. Atreya (NPTEL):- Lecture 33: Structure determination of peptides I

    NMR Spectroscopy by Prof. Hanudatta S. Atreya (NPTEL):- Lecture 33: Structure determination of peptides I

    All copyright strictly reserved to Prof. Atreya and NPTEL, Govt. of India. COURSE WEBSITE: https://www.youtube.com/redirect?redir_token=J3W-BvVF9P_QSjr1ljVg8I2O_Bl8MTUyNDU4NDYyMEAxNTI0NDk4MjIw&event=playlist_description&q=http%3A%2F%2Fwww.nptel.ac.in%2Fcourses%2F104108078%2F10
  2. NMR Spectroscopy by Prof. Hanudatta S. Atreya (NPTEL):- Lecture 34: Structure determination of peptides II

    NMR Spectroscopy by Prof. Hanudatta S. Atreya (NPTEL):- Lecture 34: Structure determination of peptides II

    All copyright strictly reserved to Prof. Atreya and NPTEL, Govt. of India. COURSE WEBSITE: https://www.youtube.com/redirect?redir_token=J3W-BvVF9P_QSjr1ljVg8I2O_Bl8MTUyNDU4NDYyMEAxNTI0NDk4MjIw&event=playlist_description&q=http%3A%2F%2Fwww.nptel.ac.in%2Fcourses%2F104108078%2F10
  3. NMR Spectroscopy by Prof. Hanudatta S. Atreya (NPTEL):- Lecture 35: Structure determination of peptides III

    NMR Spectroscopy by Prof. Hanudatta S. Atreya (NPTEL):- Lecture 35: Structure determination of peptides III

    All copyright strictly reserved to Prof. Atreya and NPTEL, Govt. of India. COURSE WEBSITE: https://www.youtube.com/redirect?redir_token=J3W-BvVF9P_QSjr1ljVg8I2O_Bl8MTUyNDU4NDYyMEAxNTI0NDk4MjIw&event=playlist_description&q=http%3A%2F%2Fwww.nptel.ac.in%2Fcourses%2F104108078%2F10
  4. NMR Spectroscopy by Prof. Hanudatta S. Atreya (NPTEL):- Lecture 36: Chemical exchange

    NMR Spectroscopy by Prof. Hanudatta S. Atreya (NPTEL):- Lecture 36: Chemical exchange

    All copyright strictly reserved to Prof. Atreya and NPTEL, Govt. of India. COURSE WEBSITE: https://www.youtube.com/redirect?redir_token=J3W-BvVF9P_QSjr1ljVg8I2O_Bl8MTUyNDU4NDYyMEAxNTI0NDk4MjIw&event=playlist_description&q=http%3A%2F%2Fwww.nptel.ac.in%2Fcourses%2F104108078%2F10
  5. NMR Spectroscopy by Prof. Hanudatta S. Atreya (NPTEL):- Lecture 37: Hydrogen or deuterium exchange

    NMR Spectroscopy by Prof. Hanudatta S. Atreya (NPTEL):- Lecture 37: Hydrogen or deuterium exchange

    All copyright strictly reserved to Prof. Atreya and NPTEL, Govt. of India. COURSE WEBSITE: https://www.youtube.com/redirect?redir_token=J3W-BvVF9P_QSjr1ljVg8I2O_Bl8MTUyNDU4NDYyMEAxNTI0NDk4MjIw&event=playlist_description&q=http%3A%2F%2Fwww.nptel.ac.in%2Fcourses%2F104108078%2F10
  6. NMR Spectroscopy by Prof. Hanudatta S. Atreya (NPTEL):- Lecture 38: Diffusion ordered spectroscopy DOSY I

    NMR Spectroscopy by Prof. Hanudatta S. Atreya (NPTEL):- Lecture 38: Diffusion ordered spectroscopy DOSY I

    All copyright strictly reserved to Prof. Atreya and NPTEL, Govt. of India. COURSE WEBSITE: https://www.youtube.com/redirect?redir_token=J3W-BvVF9P_QSjr1ljVg8I2O_Bl8MTUyNDU4NDYyMEAxNTI0NDk4MjIw&event=playlist_description&q=http%3A%2F%2Fwww.nptel.ac.in%2Fcourses%2F104108078%2F10
  7. NMR Spectroscopy by Prof. Hanudatta S. Atreya (NPTEL):- Lecture 39: DOSY II

    NMR Spectroscopy by Prof. Hanudatta S. Atreya (NPTEL):- Lecture 39: DOSY II

    All copyright strictly reserved to Prof. Atreya and NPTEL, Govt. of India. COURSE WEBSITE: https://www.youtube.com/redirect?redir_token=J3W-BvVF9P_QSjr1ljVg8I2O_Bl8MTUyNDU4NDYyMEAxNTI0NDk4MjIw&event=playlist_description&q=http%3A%2F%2Fwww.nptel.ac.in%2Fcourses%2F104108078%2F10
  8. NMR Spectroscopy by Prof. Hanudatta S. Atreya (NPTEL):- Lecture 40: STD NMR for drug target interactions

    NMR Spectroscopy by Prof. Hanudatta S. Atreya (NPTEL):- Lecture 40: STD NMR for drug target interactions

    All copyright strictly reserved to Prof. Atreya and NPTEL, Govt. of India. COURSE WEBSITE: https://www.youtube.com/redirect?redir_token=J3W-BvVF9P_QSjr1ljVg8I2O_Bl8MTUyNDU4NDYyMEAxNTI0NDk4MjIw&event=playlist_description&q=http%3A%2F%2Fwww.nptel.ac.in%2Fcourses%2F104108078%2F10
  9. T

    B Why only certain colors in emission spectrum are visible?

    Why are only certain colors of the emission spectrum in Hydrogen visible?
  10. C

    I Minimum deviation in prism spectroscope

    Suppose that I use a prism (vertex angle ##\alpha##) spectroscope to analyze a beam of visible light from a mercury lamp (different wavelenghts) and I want the determine the refraction index of the prism using the minmum deviation angles ##D_{min}##...
  11. F

    A Deconvolution of the optical absorption spectra

    Hi people, i am doing the deconvolution of the optical absorption spectra of some quartz samples . The optical absorption spectra were obtained following a step annealing procedure.For the deconvolution i am using the Origin 9, so my question is.. Why in some articles i find the deconvolution...
  12. ORF

    A How the emission spectra can be affected by E/M field?

    Hello A friend of mine asked me if he could improve the (amateur) characterization of minerals by studying the absorption spectra during the application of a magnetic field. I thought that maybe the electron cyclotron resonance could work, but then I noticed that very low temperatures are...
  13. S

    A Probability of photon emission from quantum dot

    Hi guys, I am looking for a formula which I am sure exits but I cannot locate it. The problem is that a quantum dot absorbs a photon of wavelength λ0(dot is semiconductor or could be any other material). Assuming that it reemits a photon, what is the probability that this emitted photon will...
  14. Matthew Adams

    I Emission spectroscopy of an acetylene flame

    Hey there folks! This is my first post so please be gentle... ;-) One of my students has been studying the emission spectrum of an acetylene flame. A gas mixture from both an acetylene cannister & an oxygen canister is fed out to a nozzle, a flame is ignited and we study the emission...
  15. acvtre

    UV-Vis Amine Problem: Solutions & Explanations

    Good day to everybody, I immediately expose my problem. I'm doing some measurements with the UV-vis spectroscopy and I'm having problems with the amines in the non visible region. This is what I do: put my amine in a quartz cuvette -> do the background (reference) -> analyze the same solution...
  16. Y

    Emission spectrum changes with microscope objective?

    I am using a Renishaw inVia confocal microscope to study emission spectrum of molecules. The excitation wavelength of laser that I use is 532nm. However, I met with a very basic problem. When I use the same material (say plain silicon), and use different objectives (20X, 50X, 100X), then I will...
  17. M

    Why do I plot certain Raman against the wavenumber

    I am currently writing my Bachelorthesis about Raman spectroscopy. For measurement with a 785 nm Laser I plot the Intensity against the Raman shift. But for measurements involving a 532 nm, I had so select the program (Spectrasuite) so display them against the "normal" wavenumber. Why is that...
  18. N

    Calculating CO2 Rotational Constant | J=0,1,2,3,4,5 Excited State Analysis

    Hey! I have a problem. The problem is simple: calculate CO2 rotational constant. I have values for J (ground state and excited state), with those grades I have to calculate rotational constant. I know that for J=0,2,4.. it is just in ground state and for J=1,3,5..it is excited state. But how do...
  19. P

    Alpha Particle Spectroscopy - Is My Method Correct?

    Homework Statement Hey, first time poster here, I'm current writing up a lab report I just wanted to check my method is correct. I'm doing alpha particle spectroscopy using a cloud chamber setup. Most published reports seem to vary pressure (so the mass thickness varies). Our chamber let us...
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