Chromatography Forum

Posted: **Thu Aug 16, 2007 8:38 am**

i have run a standard then a sample. but on the sample i could only get my solvent and internal standard peak. Is there any suggestion to this problem?

Posted: **Thu Aug 16, 2007 11:35 am**

There is no analyte in the sample.

Posted: **Thu Aug 23, 2007 3:37 pm**

Run a higher concentration sample and see what happens.

Posted: **Thu Aug 23, 2007 5:47 pm**

Run your standard again after the sample.

If the standard duplicates the first standard then there is no analyte in your sample as Peter has already stated, at least none present above your detection limit.

best wishes,

Rod

Posted: **Mon Aug 27, 2007 4:40 am**

Thanks for the reply.

Chromatography Forum

gc peak

gc peak