叙述了用具有分光荧光检测的高效液相色谱测定肉桂醛的一种灵敏方法。肉桂醛首先与4,5—二甲基邻苯二胺在酸性介质中反应,然后在0.02M的乙酸酯缓冲剂(PH4.0)(含有5mmolL~(-1)十二烷基三甲基溴化铵)—甲醇(1+1)用作流动相的反相柱上分析生成的荧光苯并咪唑衍生物。在0.001～30ugmL~(-1)的水溶液中测定了肉桂醛。 A sensitive method for the determination of cinnamaldehyde using high performance liquid chromatography with spectrofluorometric detection is described. Cinnamaldehyde is first reacted with 4,5-dimethyl-o-phenylenediamine in an acidic medium and then treated with 0.02 M acetate buffer (pH 4.0) containing 5 mmol L -1 dodecyltrimethylsilane Ammonium Bromide) -Methanol (1 + 1) was used as a mobile phase to generate a fluorescent benzimidazole derivative. Cinnamaldehyde was measured in an aqueous solution of 0.001 ~ 30ugmL ~ (-1).