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Ion Pairing Tetrabutylammonium Hydroxide

Posted: Thu Apr 04, 2013 12:08 am
by Jing_Fan
Hi,

We have a compound that analysed using tetrabutylammonium hydroxide. May i change tetrabutylammonium hydroxide with tetrabutylammonium hydrogen sulfate? What is the difference between tetrabutylammonium hydroxide and tetrabutylammonium hydrogen sulfate?

Best regards

Re: Ion Pairing Tetrabutylammonium Hydroxide

Posted: Thu Apr 04, 2013 1:22 pm
by Markus Laeubli, Metrohm
Assuming that your compound is an organic acid, building the ion-pair releases an OH- with hydroxide. This is neutralized by the H+ from the organic acid.
By using the hydrogen sulfate you are getting sulfuric acid instead. This migh interfere with the separation.

Re: Ion Pairing Tetrabutylammonium Hydroxide

Posted: Thu Apr 04, 2013 4:49 pm
by Klaus I.
Hi,

We have a compound that analysed using tetrabutylammonium hydroxide. May i change tetrabutylammonium hydroxide with tetrabutylammonium hydrogen sulfate? What is the difference between tetrabutylammonium hydroxide and tetrabutylammonium hydrogen sulfate?

Best regards
Double-Post?

Re: Ion Pairing Tetrabutylammonium Hydroxide

Posted: Fri Apr 05, 2013 8:59 pm
by gerapas
when we use Tetrabutylammonium Hydroxide or Tetrabutylammonium hydrogen sulfate we do ion pairing?

Re: Ion Pairing Tetrabutylammonium Hydroxide

Posted: Thu Apr 11, 2013 10:12 pm
by HippyLabRat
when we use Tetrabutylammonium Hydroxide or Tetrabutylammonium hydrogen sulfate we do ion pairing?
In what other case would you want to put that through a column?

Re: Ion Pairing Tetrabutylammonium Hydroxide

Posted: Sun Apr 14, 2013 8:04 pm
by gerapas
we use TBAHS in prednisolone(which is neutral) assay. we do ion pairing in neutral molecules?