My lab has just installed a new IC from thermo. I‘ve had no trouble at all finding other anions of intrest, other than iodide, which is pretty important to our work. I’m using hydroxide as the eluent, a 500 uL injection loop, and an AS28 column. I understand the case might be that I need to look into another column, but hoping anyone has been able to identify iodide with this column?
Dear Alexandria Forster
The hydrophobicity of the Thermo Scientific Dionex IonPac AS28 column is rated "medium-high." It means that polarizable anions will show a more substantial - adsorptive governed - retention time. A helpful hint is the late elution of bromide and nitrate (both standard anions with quite some adsorptive interaction with the resin). The resin was predominantly developed for the trace level anion determination, and the determination of weakly retained monovalent organic acids.
I think the easiest and fastest way to help is to use the free "Appslab" library and the "Virtual column" chromatography simulation tool, which is embedded. I added the link to Appslab below. Just search for iodide and click your matrix. The significant benefit of Virtual Column": Its simulations are based on real data, so that the results are very close to the experimental findings.
I am crossing my fingers! In case of any questions, please let me know.
Good luck with your research
Detlef.
https://appslab.thermofisher.com/Search?SearchText=iodide
- Badges
- Science topic
- Similar topics
- Analytical Chemistry
- Column