Zn Standards Reading Zero

Issue

Zn standards reporting blank level absorptions

Environment

• iCE 3000 series

Resolution

Analyzed samples which had been ran before in an analysis in which calibration standards were reporting normal absorbtion values. Samples reported absorbtion values akin to what had been reported in the previous analysis. Ordered new stock solution. Re-prepped calibrations standards using new stock solution and absorbtion values and linearity were similar to what had been reported in the previous analysis. 

Analysis

Cr and Ni standards were reporting correct absorbtion values.