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High Concentration calculations on Na when the signal intensity for the sample is higher than the blank?

Question asked by lbrothers on Sep 24, 2020
Latest reply on Sep 25, 2020 by tmcsweeney

Hi all -


I am very new the ICP-OES analysis and I am very confused by the values that the Agilent software is calculating. I prepare samples with a 100 fold dilution (I am running in organic solvent not aqueous) and for my samples I am getting signal intensities that are smaller than the blank or any of the calibration standards, but then it is calculating my final concentration as really high. I do not understand how this can be. Any advise would be appreciated. Thank you!