Discussion Category:  GC Autosamplers

Problem with Hewlett Packard 7673 Autosampler

Hi,

we have Hewllet Packard GC series II which equipped by Hewlett Packard 7673 Auto sampler and split injector. the is a problem with auto sampler, I should use it for quantification of fatty acids, but all the peaks are huge ( specially solvent peak). when I injected manually the same sample all peaks are normal. would you please help me in this matter?

Best Regards

Maryam

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maryam mahdiani
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Dan Ste.MarieReply by
Dan Ste.Marie

Maryam,

Verify that the autosampler is set to inject the same amount of sample as your manual injection.  If you are using software to control the A/S it is relatively straightforward.  If you are not and are using the controller box alone, you will need to verify that the dip switch setting behind the cover of the A/S door are set for the correct injection volume.

You might also want to verify that you have the correct size syringe installed.


Dan Ste.Marie

RJ2 Instrument Services

Erie, PA

www.rj2.biz

   
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