Analysis acetic acid and formic acid GC-MS

Hi,

I am trying to create a GC-MS method for the headspace analysis of solid material. I will sample the headspace of this solid material with a SPME CAR/PDMS fiber. Some of the components in the headspace are acetic acid and formic acid, but I run into some problems while creating the method for this two components.  We only want to qualify the components, quantifying the components is not necessary. We are using a HP-5 column (30m) and we prefer to analyze using this column. Here are some details from the method I use:

Injection: splitless with SPME with a injection temperature of 220 C
Oven program: 30 C with a hold time of 2 minutes; then a ramp of 20 C/min to 220 C with a hold time of 10 minutes

Many thanks!

Parents
  • Thank you! I found this one earlier today, but this application note uses another column and I think that makes the difference between a good separation and a worse separation. If this is the only column which makes it possible to analyze these components I could discuss with the manager about buying this one, but rather not.

  • HP5 column is not correct choice of such analysis...

  • I know it will be better to change to another column, but we are not routine laboratory with many samples. I need to do 2 analyses every two weeks during 40 weeks. In the meantime other projects will be continue where I have to use the HP5 column. It will be very time consuming to change the columns every two weeks to do some analysis. That is the reason why I'd rather not replace the column. That's why I am looking for other options.

Reply
  • I know it will be better to change to another column, but we are not routine laboratory with many samples. I need to do 2 analyses every two weeks during 40 weeks. In the meantime other projects will be continue where I have to use the HP5 column. It will be very time consuming to change the columns every two weeks to do some analysis. That is the reason why I'd rather not replace the column. That's why I am looking for other options.

Children
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