Our Lab analyzes used oil for our customers, we switched from BAIRD AS MOA spectrometer to ICP 8300 DV. I have been observing high Cu and Pb readings for some ENG, TRNS AND HYD compartments. Has someone experienced same issue with Cu and Pb. note we run a QC standard of 20ppm after every 5 samples and the QC readings appear normal.
oil lab chemist