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How to find emission peak of emission spectrum

  1. Oct 3, 2015 #1
    Hi all,
    I have been getting the emission spectrum of a polymer for a while. The emission peak is very important for that polymer. How do I find the emission peak of the polymer? The reason I ask this question is that if I simply select the highest point, then several points at different wavelengths have very similar counts and there might be some error there...
  2. jcsd
  3. Oct 4, 2015 #2


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    First of all, your question is extremely vague. You did not explain what type of measurement/instrument you were using, and you did not indicate if you have the entire spectrum available.

    So why can't you look at the spectrum, select a peak that you want, and pick a point in the middle of the peak? If you have to be more precise with it, fit the peak with a gaussian, if you must, and then use the peak value from your fitting.

  4. Oct 4, 2015 #3
    Thanks for your answer. I am using Invia confocal Raman microscope, and the entire spectrum is available. As you have suggested, I should use a gaussian to fit the curve--because I do need an accurate peak. I will try it.
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