Multiple Peaks Fitting of XPS, Raman, PL spectroscopy │Curve Fitting using Origin

Рет қаралды 66,491

7 жыл бұрын

The simplest but effective way of multiple peaks fitting of XPS, Raman, Photoluminesence spectroscopic data/graph. There are several ways to do it but I found this is the best way to do it quickly and easily.
#XPS peak fitting, #RamanPeakFitting, #Photoluminesence spectroscopic peak fitting, Raman spectroscopic peak fitting, #MultiplePeaksFitting and #FittingUsingOrigin .
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Пікірлер: 70

@hamdirihab3319 5 жыл бұрын

Many thanks

@IkeChiu 3 жыл бұрын

Very useful video, thank you so much.

@Alberto-yz6st 4 жыл бұрын

thank you very much!

@ajitdash8045 5 жыл бұрын

thank you so much for this video tutorial, this helped me a lot.

@MANOJKUMAR-wc3tn 3 жыл бұрын

Thanks Sir

@c60f 6 жыл бұрын

Thanks bro

@Biledlamini6395 6 жыл бұрын

this rocks

@dipakdutta7073 5 жыл бұрын

Thank you for uploading such video tutorials which might help several people in fitting their data. However, I am just wondering about the "goodness of fit" parameter which is missing in this method. So, basically we don't have idea whether we could tune some parameter to make the fit better.

@Gayalaipu 5 жыл бұрын

thanks, this video was really helpful. can you please explain regarding the amide 1 curve fitting for protein secondary structure determination?

@InSciLab 5 жыл бұрын

watch this explanation if it helps kzfaq.info/get/bejne/qNmTitymy86qm6M.html

@PremKumarSeelam 2 жыл бұрын

why only Lorentzian method, what is the main diff bwt G-L-V, when to choose?

@InSciLab 2 жыл бұрын

You have to understand the shape from the expt. data. Identify the shape and fit with the function of that shape. However, I am not expert. So, I just try with closest possible shapes and choose the best fitted one.

@xueminli7491 4 жыл бұрын

Thanks for your video. I have one question: how can we set the baseline? In my case, the auto-created baseline is over the plot. Thanks

@wafazina4225 4 жыл бұрын

Thank you for the explanation. So how i can identify my peak if I have amourphous phase with other peak in DRX Best regards

@joshuaplank883 7 жыл бұрын

Thank you for the video, it has been helpful. I keep running into this problem with some datasets where it gives an error that says I have exceeded the maximum number of iterations and it can't converge. Any idea how I can change the allowed number of iterations?

@InSciLab 5 жыл бұрын

I guess you have soled your problem by now. Sorry for late reply. I was down(lost access) for several months due to some technical fault in YT. Back now.

@amianifineug1353 6 жыл бұрын

thank you for video! please I have question how we plot differentes curve in same graphe ( X1, Y1 ), (X2,Y2)....in origin

@InSciLab 5 жыл бұрын

Guys! Sorry for late reply. I was down(lost access) for several months due to some technical fault in YT. Back now. I guess you have soled your problem by now. If not, let me know.

@MANOJKUMAR-wc3tn 3 жыл бұрын

Sir ,please make a video on fit2D software, which is used to analysis 2D graph on GiD

@rishiprasad4231 4 жыл бұрын

Hey, thanks a lot for the video. But I get a message saying that - " The fit does not converge-mutual dependency exists between parameters. You may have over parameterized the fitting function. Fixing one of them may eliminate this problem." Any suggestions ?? Thanks in advance!

@InSciLab 4 жыл бұрын

Try changing the estimated number or positions of the peaks A LITTLE.

@decsep84 7 жыл бұрын

Hai..it was more informative...can you please explain how the peak shape needs to be identified...

@InSciLab 5 жыл бұрын

Guys! Sorry for late reply. I was down(lost access) for several months due to some technical fault in YT. Back now. I guess you have soled your problem by now.

@um7144 4 жыл бұрын

after we got peak position, width etc. from origin , what about next software can use auto-matching instead reading literature?

@satirthasarma3085 6 жыл бұрын

HOW TO IDENTIFY WHICH ELEMENT OR COMPOUND IS PRESENT BY LOOKING THE PEAK? ALSO KINDLY LET ME KNOW HOW QUANTITATIVE ANALYSIS CAN BE DONE.

@Bosco12ful 6 жыл бұрын

I have rate of change of frequency data and time data . Can I use the peaks to get the average of the rate of change of frequency with 100ms windows?

@InSciLab 5 жыл бұрын

Guys! Sorry for late reply. I was down for several months due to some technical fault in YT. Back now. If you still looking for help, please elaborate.

@triptimisra7810 5 жыл бұрын

If I have a raman data is it ok to do multiple peak fit analysis without doing the baseline correction pleasereply

@InSciLab 5 жыл бұрын

It depends on the nature of data. If the baseline of the data is similar to what I showed in the video, then yes, you can do without baseline correction.

@gerardoguerrero9337 7 жыл бұрын

Please, can you help me to do one fitting for Raman spectra using four lorentzian shapes (G, D, D2, D4 ) and one gaussian shape (D3).

@InSciLab 5 жыл бұрын

Sorry for late reply. I was down(lost access) for several months due to some technical fault in YT. Back now.I guess you have soled your problem by now.

@raghavchaudhary5748 6 жыл бұрын

The reduced chi-square number seems huge. Should we worry about that?

@InSciLab 5 жыл бұрын

Yes! Sorry for late reply. I was down(lost access) for several months due to some technical fault in YT. Back now. I guess you have soled your problem by now.

@arjunk2322 5 жыл бұрын

How to know the Lorentz peak or Gaussion Peak or Mixed peak?

@InSciLab 5 жыл бұрын

By looking at the shape of the peak/peaks. Guys! Sorry for late reply. I was down for several months due to some technical fault in YT. Back now.

@snilanchalpatra2903 5 жыл бұрын

Hi ... I have a doubt . Can we fit two curves one is standard spectra curve and other is data of unknown curve and then we need to find out the values of unknown curve in comparison with the standard spectra . Thank you.

@InSciLab 5 жыл бұрын

That would be very useful, I am sure. I think there are some specific software to do that. However, I have not used any. Following article may help. inscilab.com/tips-tricks-tutorials/multiple-peaks-fitting-of-xps-raman-pl-spectroscopy-curve-fitting-using-origin-explanation/ This is how I do it.

@bienvenugael3026 5 жыл бұрын

what is the sound title played ?

@user-dt9qz3uk1l 5 жыл бұрын

I got so many Gaussian peaks from di/dv spectroscopy of stm.....how can I fix it?

@InSciLab 5 жыл бұрын

watch this explanation if it helps kzfaq.info/get/bejne/qNmTitymy86qm6M.html

@omar.r.quiroz 6 жыл бұрын

Is it possible to force the position of a peak?

@InSciLab 5 жыл бұрын

BY clicking on exact point only. And that's disappointing, I know. I guess you have soled your problem by now. Sorry for late reply. I was down(lost access) for several months due to some technical fault in YT. Back now.

@anamartinezm 5 жыл бұрын

Hello, I cannot pass to the selection of the peaks because it shows an error: "the input data are not monotonic increase". I already tried changing to ascending/descending the columns/worksheet and nothing worked. Do you know by any chance why this is occurring?

@InSciLab 5 жыл бұрын

Check data points manually. one or more points have unexpected values or negative values or values are missing. Check and let me know if don't find. i will try to check the file, then.

@gerardoguerrero9337 7 жыл бұрын

Please, can you help me to do the curve fitting for Raman spectra using Origin to obtain four lorentzian shapes (G, D, D2, D4 ) and one gaussian shape (D3) as it is reported in the article below: Raman microspectroscopy of soot and related carbonaceous material: Spectral analysis and structural information. Carbon, 43, (2005) 1731-1742.

@InSciLab 7 жыл бұрын

I never tried this kind of mixed shape fitting. I guess following way can be easier. I am not sure. A) Cut the data into 2 set. 1 will have the only D3. then separately do the fitting for each and finally do convolution of those. Or B) Choose the psedo function which is a complicated mix of Lorentzian and Gaussian. I guess if the fit comes okay then you can understand that the software can do it automatically. Or C) Write function manually........ I am totally stupid in this.

@gerardoguerrero9337 7 жыл бұрын

Can you try with my data. can you give me your mail,

@InSciLab 7 жыл бұрын

send your data to contact@easywayhowto.com

@qadeerawan5160 7 жыл бұрын

Faciing problem: that data is not of monotonic increase

@dineshkumar4577 7 жыл бұрын

When i am following the same procedure suggested by you i am getting a message that the fit didn't converge after many iteration. So what to do. can i sen u my data file?

@InSciLab 7 жыл бұрын

Sure. Send me your data.

@dineshkumar4577 7 жыл бұрын

Can u provide me ur mail id?

@dineshkumar4577 7 жыл бұрын

i have the data on ur mail id contact@easywayhowto.com.

@InSciLab 7 жыл бұрын

Yes I got it. I have tried to fit. But, could not do it properly. The problem lies in data. How many peaks should be in the range 100 - 10000? I am surprised to see that at least 32 peaks are there. Below 200 at least 13 peaks are there. I guess these are causing problem. This simple method will not be sufficient for your data. Or I can suggest you to check your samples properties and phase.

@sidewaysfcs0718 7 жыл бұрын

It keeps telling me that data is not of monotonic increase, i can't get to the peakfit window after hitting the beaks and baseline option

@lidiatarczewska7206 7 жыл бұрын

same problem here :

@qadeerawan5160 7 жыл бұрын

facing same problem here

@qadeerawan5160 7 жыл бұрын

Just start your data from downward to higher one than it will works

@poojadwivedi8493 6 жыл бұрын

Still its not working. keeps showing that data is not monotonic increase.

@nunoferreira8071 6 жыл бұрын

click on the column (with the right mouse button) -> sort column-> ascending

@prabhakarakshay 5 жыл бұрын

Can I do this on MATLAB or SCILAB ?

@InSciLab 5 жыл бұрын

I know, people do it on MATLAB too. But I have no experience on that.

@adedamolaopalade792 7 жыл бұрын

How do you know when to choose Gaussian or Lorenztia or mixed?

@InSciLab 5 жыл бұрын

1. By looking at the shape. 2. Trial and error method to get the best fit.

@elzeroquantumschool1607 5 жыл бұрын

I think this done by stimulating annealing methods But I wish to know it's algorithms

@wondimagegneassefamolla1289 5 жыл бұрын

The video was very nice but no explanation. Can you send me with an explanation? Thanks

@InSciLab 5 жыл бұрын

I will try to upload a video with explanation. Stay tuned. Thanks for asking and watching the video.

@wondimagegneassefamolla1289 5 жыл бұрын

Thanks! I wait better explanation for the best understanding especially on how to select peaks, selected peaks exactness confirmation criteria, calculating deconvoluted peaks area and getting the best deconvoluted peaks. If you gave me your email, I can send my protein secondary structure data to benefit more. Thank you so much!! My email: wondimagegneams@yahoo.com

@InSciLab 5 жыл бұрын

@@wondimagegneassefamolla1289 Watch the video, I have made for you and others who have asked for it. kzfaq.info/get/bejne/qNmTitymy86qm6M.html