摘要：A gas chromatographic method is described for determining morphamquat (I) in aqueous herbicide preparation. The compound was analyzed by means of a gas chromatography of its reduction products obtained by treatment with sodium borohydride-nickel chloride system or with sodium borohydride alone. The reduction products were analyzed by a gas chromatography equipped with a hydrogen flame ionization detector and a 2 m×3 mm i.d. glass column packed with 1% SE-30 on Gas-chrom Z at 290° with a flow of 30 ml/min of N2. The reduction system of NaBH4 and NiCl2 is well suited for the assay of 40-300 μg/ml concentration of I (internal standard : dimethyl-POPOP). The main product in NaBH4·NiCl2 reduction of I was presumed on the basis of the results of elemental analysis, and from infrared and mass spectra to be N, N'-bis (3, 5-dimethylmorpholinecarbonylmethyl)-γ, γ'-bipiperidine (IV).
