ANALYTICAL METHOD OF ALDEHYDE COMPOUNDS IN METAL PLATING SOLUTION

摘要

PROBLEM TO BE SOLVED: To provide an analytical method of aldehyde compounds in a metal plating solution which can detect aldehyde compounds in a metal plating solution to a level of below 0.1 mg/mL with a simple and economical method.SOLUTION: An analytical method of aldehyde compounds in a metal plating solution includes the steps of: preparing a supersaturate aldehyde derivative solution by dissolving the aldehyde derivative to be supersaturated while adding a pH regulation solution in the aldehyde derivative to control to substantially same pH as pH of the metal plating solution; adding the supersaturated aldehyde derivative solution in the metal plating solution, derivatizing aldehyde compounds existing in the metal plating solution, and obtaining aldehyde derivative compounds; extracting the aldehyde derivative compounds; and analyzing the aldehyde compounds from the extracted aldehyde derivative compounds.