X-Ray Fluorescence On-Stream Analysis of Standard Reference Solution Concentrations of Chromium Plating and Polishing Solutions

摘要

X-ray fluorescence is evaluated as a means to quantitatively analyze standard reference solution concentrations of chromium plating and polishing solutions for chromium, sulfur, phosphorus, and iron in a continuous, on-stream fashion. The identical experiment was conducted at two different manufacturers of this type of instrument and included calibration/standardization with standard reference chromium plating and polishing solutions, analysis with coded standard reference chromium plating and polishing solutions, calibration/ standardization with standard reference chromium plating and polishing wastewater solutions, and analysis with coded standard reference chromium plating and polishing wastewater solutions. Resultant data and their corresponding precisions show promise for this application and may complement current off-stream laboratory methods now in use. More work will be conducted to further determine the value of this technique.