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Several questions from a total greenhorn - 2005/11/28 18:01 hi

I´m an undergrad student doing a practical internship
5 weeks ago I had never ever dealt with a GC, not to speak about fixing problems with it.

when I can see clearly the peaks, but the integrator does not integrate it, is one possibility (among others!)to the problem a wrongly set Peak Witdh?
does changing the peak witdh influence the calculating? I mean do I need to make a new calibration after I changed this parameter?

when I plot the sensitivity against the detector current, does the graph pass through a maximum or is it all the way increasing until the filament burns out?

and I think my GC (Gow Mac 550 Series) has some kind of slacky joint or the like... without any warning the baseline becomes a straight line without any noise
running with sample gases I only get idle peaks
the peaks are in the right place, but sometimes they even go in the wrong direction
when I switch the polarity then the plot looks like normal, just upsidedown of course
do you have any idea what it could be

I´m lost...

thx
Michael
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