Study on determination glutamic acid with flow-injection chemiluminescence method
A fast and sensitive method for the determination of glutamic acid with flow-injection chemiluminescence method of oxidation by NBS was reported in this paper. It was based on the chemiluminescence emitted during the direct oxidation of glutamic acid by NBS in sodium hydroxide condition enhanced by CTAB in the system. Various factors influenced the CL system were investigated carefully. The detection limit is 1×10-6g/mL(3σ), the linear range of determination was 3×10-6～1×10-3g/mL and the relative standard deviation of 3.1% (1×10-5g/mL, n=11). The recommended method has been successfully used for analysis of glutamic acid in products.