July 17, 2024, 06:28:32 AM
Forum Rules: Read This Before Posting


Topic: About HRMS  (Read 1929 times)

0 Members and 1 Guest are viewing this topic.

Offline kamiyu

  • Full Member
  • ****
  • Posts: 181
  • Mole Snacks: +8/-7
  • Gender: Male
About HRMS
« on: January 08, 2015, 03:20:39 PM »
Hello

I receive my HRMS result and I think the results show I got the compounds.

But I always observe peaks with double or even triple the molecular weight of my stuff. I think this is dimer.

Anyone can elaborate the formation of this dimer or trimer???

Offline MOTOBALL

  • Full Member
  • ****
  • Posts: 372
  • Mole Snacks: +50/-5
Re: About HRMS
« Reply #1 on: January 11, 2015, 03:18:34 PM »
This type of question is really meaningless without providing, at the very least....

1. The method of ionization (EI, CI, ESI etc)

2. The mode (+ve or -ve)

3. The molecular formula

4. The m/z values observed

Sponsored Links