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Issues with IC Cationic Suppressor Method

http://chromforum.org/viewtopic.php?t=19971

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Issues with IC Cationic Suppressor Method

Posted: Mon May 28, 2012 3:29 am
by Labmonkey
Have no end troubles :? with an ion exchange method for Bethanechol Chloride (USP related susbstances method) using a Dionex cationic suppressor fitted to a shimadzu CDD-10AVP conductivity meter. Have issues with stable baseline, and seeing the peak of interest consistently when a have the suppressor operating and turned off. Have very little experience with the conductivity meter and suppressor, any help any one could provide would be very much appreciated

Re: Issues with IC Cationic Suppressor Method

Posted: Wed May 30, 2012 10:29 am
by Markus Laeubli, Metrohm
We use non-suppressed IC for that application (see AN C-120). Your conductivity detector should be able to cope with the background and its thermal stability.
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