Deconvolute multiple peaks | XPSPEAK41 | XAS |Baseline correction | Interpolation | Origin | VKMeV

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  • เผยแพร่เมื่อ 22 ธ.ค. 2024

ความคิดเห็น • 55

  • @caglaberberoglu
    @caglaberberoglu 4 ปีที่แล้ว +5

    This saved my life thank you so much :D

    • @vkmev
      @vkmev  4 ปีที่แล้ว +4

      Thank you so much Cagla Berberoglu. :)

    • @MrYailke
      @MrYailke 4 ปีที่แล้ว +1

      Very nice player

  • @hyurrrin
    @hyurrrin 5 ปีที่แล้ว +2

    Thank you so much for your kind explanation. It really helped my research paper. Thank you!

    • @vkmev
      @vkmev  5 ปีที่แล้ว +1

      Thanks a lot haewon lee

  • @SanjeevKumar-wy2pb
    @SanjeevKumar-wy2pb 4 ปีที่แล้ว +2

    Thanks for giving great information 😍😍😍

    • @vkmev
      @vkmev  4 ปีที่แล้ว

      My pleasure 😊

  • @ASIFALIJAN
    @ASIFALIJAN 5 ปีที่แล้ว +3

    Sir, thank you so much. I am grateful to you.

    • @vkmev
      @vkmev  5 ปีที่แล้ว +2

      Thank you so much Aey Jay. :)

  • @gurugyanyog9999
    @gurugyanyog9999 4 ปีที่แล้ว +3

    Thanks for the tutorial. It helped a lot

  • @dazza9129
    @dazza9129 5 ปีที่แล้ว +3

    How can you see those peaks? Just from the graph? And in some cases can you use a reference paper?

    • @vkmev
      @vkmev  5 ปีที่แล้ว +2

      Yes. First we give the peak position as given in reference papers, then if we see some shoulders in the peaks, we have to add an extra peak corresponding to it. Then run the optimisation. In some cases, the position and fwhm of particular peak are kept fixed, but the spectra could not be fitted by fixing them, then also we add extra peak to fit the whole spectra.
      Thanks.

    • @dazza9129
      @dazza9129 5 ปีที่แล้ว

      @@vkmev Thank you very much. Also another question: Is deconvolution of peaks using origin software alone also a good way in deconvoluting?

    • @vkmev
      @vkmev  5 ปีที่แล้ว +2

      @@dazza9129 yes. It is good. I have uploaded some videos on this also. In the beginning of this video, I stated that why I am preferring xpspeak41 software for deconvolution.

    • @dazza9129
      @dazza9129 5 ปีที่แล้ว

      @@vkmev Lastly, how do I know if I correctly deconvoluted my peaks(sorry for the beginner question). Sometimes I cannot fully trust reference papers to refer to the position and shape of my peaks(do not want to become biased).

    • @vkmev
      @vkmev  5 ปีที่แล้ว +2

      @@dazza9129 this is not a beginner question. Experts also face this problem. A good literature survey will only assure you whether your deconvolution is good or not.

  • @mkd9220
    @mkd9220 3 ปีที่แล้ว +1

    Thank you for so useful video. What to do if can't save the XPS fitted data file in text? File saved in origin, but it's empty.

    • @vkmev
      @vkmev  3 ปีที่แล้ว

      If you have saved .XPS file, open it. Then save the spectrum. If you did not save XPS file, then you have to again fit the data. Once you have saved the spectrum, open that .dat file, and delete the unwanted data points in the beginning. Then import this into origin. I think I have explained it step by step in this video.
      Thank you :)

    • @mkd9220
      @mkd9220 3 ปีที่แล้ว +1

      @@vkmev yes, you already explained everything very well step by step. Thank you so much for your efforts.
      In my case, when I saved the file it's always automatically saved as origin file, when I open the file it's all empty. When I dragg and open origin file in either excel or txt then only I can see the data. Then only I can go further for plotting data.
      Just mentioned the details here, in case someone facing the same problem, it will be a tiny help to them.
      Thank you.

  • @soumyakannoth1
    @soumyakannoth1 4 ปีที่แล้ว +2

    Iam not able to download this software.kindly help me

    • @vkmev
      @vkmev  4 ปีที่แล้ว

      XPSPEAK 4.1? search on software websites. If you don't find there, then let me know through email.

    • @soumyakannoth1
      @soumyakannoth1 4 ปีที่แล้ว

      @@vkmev Thanks for your reply. ..I got it..

    • @soumyakannoth1
      @soumyakannoth1 4 ปีที่แล้ว +2

      Does the minimum chi sqr value tell the best fitting of XPS? How we can compare the XPS deconvoluted data of two same material but the different ratio in their composition and different chi sqr value obtained during fitting?

    • @vkmev
      @vkmev  4 ปีที่แล้ว +2

      @@soumyakannoth1 yes... Minimum Chi Sqr value tells the better fitting of xps/xas data. For your second question, in the case of XAS, I would subtract the background, used in fitting, and then will find out the area ratios of the featured peaks. The area is also provided in fitting.
      For particularly XPS, I am sorry, I am not expert in it yet.

  • @prasadmattipally
    @prasadmattipally 2 ปีที่แล้ว

    It showing missing some files bro. Plz install on my system through anydesk

  • @bw8133
    @bw8133 5 ปีที่แล้ว +2

    Thanks a lot for your detailed explanation! I am wondering when we do the charge shift correction for XPS data? before peak fitting or after it? Thank you~

    • @vkmev
      @vkmev  5 ปีที่แล้ว +1

      Dear Bowen, I have used this software only for peak fitting. So please contact to XPS expert. Thanks :)

    • @bw8133
      @bw8133 5 ปีที่แล้ว +1

      @@vkmev Thanks a lot for your reply~ I asked the others and someone told me manual subtraction or add may work well. I am going to try that.

    • @vkmev
      @vkmev  5 ปีที่แล้ว +1

      @@bw8133 I also think so... All the best 👍

  • @SanjeevKumar-jw2rt
    @SanjeevKumar-jw2rt 4 ปีที่แล้ว +3

    good job... thanks

    • @vkmev
      @vkmev  4 ปีที่แล้ว

      Welcome

  • @fayyu6539
    @fayyu6539 3 ปีที่แล้ว

    Hello, if I can have your helps. I tried to plot the txt document,but it showed error reading files, I tried it many times, but could not open. There is no space and any words.

    • @vkmev
      @vkmev  3 ปีที่แล้ว

      I think you are talking about plotting the fitted .TXT file into origin. So, first you open the .TXT file in notepad. Then, insure that all the columns have data points from first row. Sometimes for some columns, there are no data points for beginning rows. If this is the case, you can delete those rows. Then it will work.
      Thanks

    • @fayyu6539
      @fayyu6539 3 ปีที่แล้ว

      @@vkmev Thanks, it works now!

  • @prakashpg4505
    @prakashpg4505 3 ปีที่แล้ว

    Hi friend thanks for the wonderful video.It helped me a lot. sorry, the question may be silly buy i have no sound knowledge in XPS peak fittings and all, I need one clarification, in the interpolation step how did you decide the step size is 0.2 is there any reason behind this or simply we can select.

    • @vkmev
      @vkmev  3 ปีที่แล้ว +1

      I hope you have doubt at 16:35
      You can choose arbitrarily any step size, but when you will use symbols and bigger size of them, then you can understand that symbols are overlapping too much, so no good use of the symbols. Therefore we can increase the step size and get the plot looking good, where the symbols are at some distance from each other. It should not be much also, as small peaks can be eliminated at interpolation with larger step size.

    • @prakashpg4505
      @prakashpg4505 3 ปีที่แล้ว +1

      @@vkmev Thanks for your reply, I need one more clarification, as per my understanding if I want to differentiate the peaks only by Colors then I don't need interpolation step, is it correct?. Because you are doing interpolation to introduce the symbols on the respective peaks right?

    • @vkmev
      @vkmev  3 ปีที่แล้ว +1

      @@prakashpg4505 yes you are right.

    • @prakashpg4505
      @prakashpg4505 3 ปีที่แล้ว

      @@vkmev Thank you friend 👍🏻

  • @gurugyanyog9999
    @gurugyanyog9999 4 ปีที่แล้ว +3

    👍👌

  • @Palak-ve9te
    @Palak-ve9te 4 ปีที่แล้ว

    I have been trying to fit. In your case chi square is very low. But I am getting visibly good fit but the chi square is 34.4.is it acceptable?

    • @vkmev
      @vkmev  4 ปีที่แล้ว +1

      As Chi square value show goodness of fit. Try to change the parameters like, position, fwhm, fix or unfix some peaks. I hope you will get good chi square value.
      You can compare the peak parameters with good published reports and try fitting.

    • @Palak-ve9te
      @Palak-ve9te 4 ปีที่แล้ว

      @@vkmev Hey thank you. I am trying.

    • @Palak-ve9te
      @Palak-ve9te 4 ปีที่แล้ว +1

      @@vkmev Hey, I got the value but. I wanted to ask. When the data was normalized i got the value in just one click. What is the reason for this?

    • @vkmev
      @vkmev  4 ปีที่แล้ว

      @@Palak-ve9te I think you are fitting XAS data. in this case, normalized data is preferred, otherwise unnormalized pre and post edges create problems to decide the exact peak position. Athena is known as reliable peak fitting software for XAS. You can follow this tutorial for basic th-cam.com/video/k4Kt0xl88eA/w-d-xo.html
      Thanks for sharing your doubts. :)

    • @Palak-ve9te
      @Palak-ve9te 4 ปีที่แล้ว +1

      @@vkmev Thanks. how do we calculate area of whole peak to calculate elemental composition?

  • @PradeepKumar-js5wc
    @PradeepKumar-js5wc 2 ปีที่แล้ว +1

    Good

  • @anirudhaghosh707
    @anirudhaghosh707 4 ปีที่แล้ว

    good work sir......

    • @vkmev
      @vkmev  4 ปีที่แล้ว

      Thank you sir 😎

  • @Sandhaan108
    @Sandhaan108 3 ปีที่แล้ว

    Thanks

  • @prasadmattipally
    @prasadmattipally 2 ปีที่แล้ว

    It showing missing some files bro. Plz install on my system through anydesk