IC very high conductivity

Discussions about IC and related topics

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Hi,
I have very high conductivity near 7000 μS.
IC 5000+, AERS 500e, AS 11
food testing: phosphates, nitrates
Gradient method NaOH

A high level began to appear suddenly when moving the gradient from low concentration 0,5% NaOH to 50% - 50mM NaOH.
Has something damaged the suppressor!? Any contamination!? At 0.5% there is a very low conductivity of 0.5.

The first injections did not show such anomalies. I changed from aqueous solutions (fish and meat) to ashing (fish and meat; 550C) and dissolving in water.
Use proper conditions of the suppressor regenaration. If the regeneration is electrolytical, set the regeneration current (mA) value recommended in the Chromeleon for the final concentration of the eluent rather than for the initial concentration.
2 posts Page 1 of 1

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