摘要
应用气相色谱-质谱联用技术对邻硝基甲苯的还原反应产物进行定性分析。色谱条件:ZB-5MS 毛细管气相色谱柱(30.0 m×250μm,0.5μm),柱温100～250℃(20℃/min)、气化室温度270℃、氦气流量0.8mL/min。通过对该反应产物进行计算机谱库检索结合人工质谱解析,鉴定出以氯化亚锡或锌为还原剂时,邻硝基甲苯还原产物中除还原产物甲基苯胺外,还有一定量的甲基-氯-苯胺副产物。
The products in the reduction of o-nitro-toluene with tin were determined by gas chromatography-mass spectrometry. On a 30 m × 0.25 um, 0.5 um film thickness ZB-5MS capillary column, under the conditions of helium gas flow rate 0.8 mL/min, oven temperature rise from 100 to 250 ℃ and injector temperature 270℃, the products were well separated. Products were identified manually and through mass spectrum library matching. The mechanisms of byproduct formation were proposed, which agreed well with the byproduct＇s structure.
出处
《精细石油化工》
CAS
CSCD
北大核心
2008年第4期55-57,共3页
Speciality Petrochemicals
关键词
邻硝基甲苯还原
氯化亚锡
锌粉
气相色谱/质谱联用
o-nitro-toluene
stannous chloride
zinc dust
gas chromatography-mass spectrometry
