Chromatography Forum

Has anyone ever had this problem with Chemstation?

I load a GC-FID datafile, then select Overlay Chromatograms to make an overlay with another file in the same sequence. But when the "select files for overlay" dialog box shows up, no data files appear. I can change the directory but I can never see any data files, from the current sequence or any other sequences.

I can see all of the data files when I go to load them.

Have been able to work around it by loading a different data file and then selecting overlay. Apparently it only wants overlay to work with certain files as the "base." However, this time overlay doesn't work with any of the files from this sequence.

I have had this problem intermittently since I started using Chemstation, first on windows XP and now on windows 7.

I'm using Chemstation Data Analysis build 75, from 2003. (Vintage!)

I'm gonna try OpenChrom in the meantime.

Any suggestions? Thanks!

"... have you tried turning it off and on again?..."

Sometimes restart of computer solves everything.

Alas, neither restarting Data Analysis nor restarting the computer has had any effect on my problem.

As a side-note, I haven't been able to load any FID traces on OpenChrom. Apparently it only does MS?

Hi snirtty,

I'm sorry, OpenChrom supports only MS data at the moment.


Cheers,
eselmeister

At first I thought that you just do not have the data file (this happens if you select the wrong signal to the detector), but now seems to have understood the question.
Older Chemstation versions have a limitation when working in online.
For this purpose, I parallel load the off-line and view the results in it.

At first I thought that you just do not have the data file (this happens if you select the wrong signal to the detector), but now seems to have understood the question.
Older Chemstation versions have a limitation when working in online.
For this purpose, I parallel load the off-line and view the results in it.

Hm.......
Have you seen what snirtty wrote:

"I'm using Chemstation Data Analysis build 75, from 2003. "

FYI - Data Analysis is not "on-line" !

With GC, I use A.06 to A.09, and I don't have any issues overlaying either online or offline.

Our datasystem UniChrom allows batching into single file several signals and process them
simultaneoslly or separately:


HP ChemStation file formats of all versions are supported:
http://www.unichrom.com/chrom/uc-ffe.shtml

Has anyone ever had this problem with Chemstation?

I load a GC-FID datafile, then select Overlay Chromatograms to make an overlay with another file in the same sequence. But when the "select files for overlay" dialog box shows up, no data files appear. I can change the directory but I can never see any data files, from the current sequence or any other sequences.

I can see all of the data files when I go to load them.

Have been able to work around it by loading a different data file and then selecting overlay. Apparently it only wants overlay to work with certain files as the "base." However, this time overlay doesn't work with any of the files from this sequence.

I have had this problem intermittently since I started using Chemstation, first on windows XP and now on windows 7.

I'm using Chemstation Data Analysis build 75, from 2003. (Vintage!)

I'm gonna try OpenChrom in the meantime.

Any suggestions? Thanks!

Check with Agilent.
You may have corupted files or fragmented files.
Delet temp files, defrag your drive and reboot your computer
This should work