What is the limit of detection in a plastic substrate, paint film, and metal sample for a Niton XRF analyzer?
• Detection limits depend on a number of factors, including your version of the instrument, sample substrate, length of measurement, and elements of interest, to name a few. • The LODs in a plastic substrate are 4 ppm (Pb) in a PE matrix and 10 ppm (Pb) in a PVC matrix. LODs will improve when using a Niton XL3t GOLDD. • Detection limits for a paint film vary from 0.2 µg/cm2 – 0.4 µg/cm2. • Detection limits in a metal sample are: 18 ppm (Pb) in an Al matrix; 60 ppm (Pb) in an Fe matrix; and 200 ppm (Pb) in an Sn matrix. LODs will improve when using a Niton XL3t with GOLDD technology.