β-紫罗兰酮热裂解行为的初步探讨  

Investigation of Pyrolysis Behavior of β-Ionone by on-line Pyrolysis-gas Chromatography /mass Spectrometry

作　　者：赵瑞峰[1] 程侠[2] 叶荣飞[1] 林翔[1] 饶国华[1] 

机构地区：[1]广东中烟工业有限责任公司技术中心,广东广州510385 [2]中山大学化学与化学工程学院,广东广州510275

出　　处：《中山大学学报（自然科学版）》2014年第2期88-93,共6页Acta Scientiarum Naturalium Universitatis Sunyatseni

摘　　要：采用在线热裂解-气相色谱/质谱(Py-GC/MS)联用技术研究了在氦气氛围中β-紫罗兰酮在300、400、500、600、700、800℃下的热裂解行为,结果表明:①β-紫罗兰酮可以裂解生成48种物质;②在600℃以下只有10.765%的β-紫罗兰酮发生裂解;在700、800℃裂解加剧,有18.149%和21.286%的β-紫罗兰酮发生裂解;③同时随着裂解温度的升高,形成的危害性芳香烃类化合物的相对含量也逐渐增大。此外,根据主要裂解产物对β-紫罗兰酮的裂解机理进行了初步探讨。β-Ionone was pyrolyzed under helium atmospheres at 300,400,500,600,700 and 800 ℃respectively,and the pyrolysates were analyzed by on-line gas chromatography /mass spectrometry （GC/MS）.The results showed that （1 ）Forty-eight substances were detected from the pyrolysates at 800 ℃;（2）At 600 ℃ only 10.765% ofβ-ionone was pyrolyzed.The pyrolysis reaction became more intensive at 700 and 800 ℃,18.149%and 21.286%ofβ-ionone was pyrolyzed;（3）the percentage of aromatic compounds increased with the increase of pyrolysis temperature.The possible pyrolysis mechanism ofβ-i-onone was preliminarily investigated based on the major pyrolysates.

关 键 词：Β-紫罗兰酮 热裂解 烟用添加剂 

分 类 号：O621.15[理学—有机化学]