High-Low Calibration with Inline Dilution (Metrohm IC)

Discussions about IC and related topics

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Hello,

We are trying to extend the calibration range of both our anion and cation calibrations to account for high concentration ranges in wastewater samples. We are currently running a Metrohm 940 IC with Inline Filtration and Inline Dilution.

Our current analytes of interest are as follows:
anions: F, NO2, Br, NO3, SO4, PO4
cations: Na, NH4, K, Ca, Mg

I would like to set up the high-low calibration technique as specified in the S349 Metrohm application note, but this is for Partial Loop injection, which we do not have. According to a webinar I watched delivered by Dr. Andrea Willie, I believe this technique is possible with Inline Dilution.

Can anyone confirm this for me and ideally send me any tips to set it up with Inline Dilution on MagICNet 3.1? I would be very appreciative of any assistance.
Dear alroko

High-low calibration can be applied to any calibration type the important part, that the highest calibration level of "low" is also the lowest level of "high".
As I am out of the office right know, contact Elke Suess (elke.suess@metrohm.com) for more details.

Best regards
Markus
Dr. Markus Laeubli
Manager Marketing Support IC
Metrohm AG
9101 Herisau
Switzerland
Hello Markus,

Thank you so much! Hope all is well with you.

Cheers!
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