Abstract
A specific and sensitive method was established for the determination of nitrite in biological materials. In the first step, nitrite is converted with diethylamine into N-nitrosodiethylamine by the N-nitrosation reaction under acidic condition. In the second step, the N-nitrosodiethylamine is determined by gas-liquid chromatography connected to a thermal energy analyzer (GC-TEA). This method is effective and practical.
