loading spc and par data from an old Bruker using eprload

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Max Bols
Newbie
Posts: 4
Joined: Mon Jul 31, 2017 9:47 am

loading spc and par data from an old Bruker using eprload

Post by Max Bols »

Dear easyspinners,

I have a problem importing spc data (with par file alongside) into matlab using the eprload function.
I use matlab version R2016a, Easyspin 5.1.12

The eprload function gives an output as required, but the spectrum looks very much distorted. i.e. there are regions with very much noise-like datapoints of very high intensity which are not shown when the data is viewed on the Bruker machine itself.

How I do it:
[B,spc,param] = eprload('C:\Temp\Wout297K1e5gain20001802.spc');

with the accompanying .par in the Matlab directory.

Thanks!
Max
Max Bols
Newbie
Posts: 4
Joined: Mon Jul 31, 2017 9:47 am

Re: loading spc and par data from an old Bruker using eprloa

Post by Max Bols »

an example of such a spectum is attached.
Attachments
untitled.jpg
untitled.jpg (34.27 KiB) Viewed 2061 times
Stefan Stoll
EasySpin Creator
Posts: 1041
Joined: Mon Jul 21, 2014 10:11 pm
Location: University of Washington

Re: loading spc and par data from an old Bruker using eprloa

Post by Stefan Stoll »

Please attach the spc and par files.
Max Bols
Newbie
Posts: 4
Joined: Mon Jul 31, 2017 9:47 am

Re: loading spc and par data from an old Bruker using eprloa

Post by Max Bols »

Hi,

I'm appaently not allowed to attach par and spc files on the forum, but a set of par & spc file with the obtained spectrum can be found in the google drive folder given here;
https://drive.google.com/open?id=0B_7N- ... kZrXy1MR0k

Max
Stefan Stoll
EasySpin Creator
Posts: 1041
Joined: Mon Jul 21, 2014 10:11 pm
Location: University of Washington

Re: loading spc and par data from an old Bruker using eprloa

Post by Stefan Stoll »

The .spc file is 4101 bytes long, which is unusual. It's not a multiple of 4. For 1024 points, it should have 4096 bytes. So it could be that the file is corrupted.

Which spectrometer and software did you use to record and save the data?

Does this file open correctly in Bruker's software? Also, check whether there was a transfer problem by transferring the files back onto the computer with the Bruker software.
Max Bols
Newbie
Posts: 4
Joined: Mon Jul 31, 2017 9:47 am

Re: loading spc and par data from an old Bruker using eprloa

Post by Max Bols »

Hi Stefan,

You were right, it was due to the file transfer (via FTP connection).
changing to binary mode fixed the problem.

thanks a lot for your help and quick response!

Max
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