Abstract
The analysis of nitrogen bearing additives in polyolefins is of great economic im portance. For many years this analysis has been accomplished by a solvent extraction procedure, followed by chromatographic, infrared, or ultraviolet determination of the extract. These methods can be tedious and extremely time consuming due to the many steps required to perform the analysis. However, an alternative method is available. The new procedure involves the oxidative pyrolysis of the sample and the chemiluminescent detection of chemically bound nitrogen. This method offers ac curacy, reproducibility, and speed of analysis not found in current analytical tech niques. Now, timely production line decisions can be made without having to wait 3 to 4 hours for sample results. This procedure has proved to be equally effective for polyethylene, polypropylene and many other polymers, copolymers and related materials.
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