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为证实夹竹桃的挥发物是否会污染环境或有“致癌物质”，采用气相色谱分析法，在ＰＥＧ１５００色谱柱上，分离夹竹桃释放的气体挥发物。明确，夹竹桃气体挥发物主要组分是：水杨酸甲酯、丙烯酸、丁酮醇、乙酰乙酸乙酯、乙醛、丙烯、乙硫醇、丙烯醛、松油醇、乙硫醚、乙酸乙酯。水杨酸甲酯和丙烯酸占总挥发量的１０．５２％所以夹竹桃有很强的杀菌能力。丙烯醛的释放，不影响环境质量。夹竹桃的特有刺激性气体，由丙烯酸、乙硫醇、乙醛、乙硫醚组成。
In order to confirm whether the oleander volatiles pollute the environment or have a “carcinogenic substance”, gas volatiles released by oleander are separated on a PEG1500 column by gas chromatography. Clearly, oleander gas volatile main components are: methyl salicylate, acrylic acid, butanone alcohol, ethyl acetoacetate, acetaldehyde, propylene, ethanethiol, acrolein, terpineol, ethyl sulfide, Ethyl acetate. Methyl salicylate and acrylic acid accounted for 10.52% of the total volatiles so oleander has a strong bactericidal ability. Acrolein release, does not affect the quality of the environment. Oleander unique irritating gases, from acrylic acid, ethanethiol, acetaldehyde, ethyl sulfide composition.