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- Posts: 12
- Joined: Thu Mar 15, 2018 9:30 pm
I currently use a Dionex IC with Electrochemical detector for sugar quantification. I use a CarbonPac PA20 column and 200mM NaOH. For years, we have used a standard concentration range of 5 - 20 mg/L for the standard peak. For this, we have had to dilute our samples 100 - 200 dilution factor. Sometimes, we have had to go up to DF 400! As you know, this is a difficult task and leads to pipetting errors.
(1) Can I use a higher concentration range for this? Even going up to 100 - 200 mg/L can reduce the amount of dilution.
(2) I am new to using an ECD. How often should I change the electrode? How will I know it is time to change it?
Thank you for your help in advance.