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本文报道了测定水果及果汁中ppb级丁酰肼及1,1-二甲基肼(UDMH)残留量的定量方法。其原理为试样中丁酰肼在碱性条件下分解成UDMH,然后随原试样中的UDMH同时被蒸出,与2-硝基苯甲醛(2-NB)反应生成腙(2-
In this paper, a quantitative method for the determination of ppb grade butyrylhydrazide and 1,1-dimethylhydrazine (UDMH) residues in fruits and juices has been reported. The principle is that the butyrate in the sample decomposes into UDMH under alkaline conditions and then is distilled off simultaneously with the UDMH in the original sample to react with 2-nitrobenzaldehyde (2-NB) to form hydrazone (2-