质子转移反应质谱检测不同品种桂花挥发性有机物  

Measurement of Volatile Organic Compounds from Different Osmanthus Species by Proton Transfer Reaction Mass Spectrometry

作　　者：柯丽霞[1] 沈成银[1] 黄超群[1] 陆燕[1] 夏磊[1] 陈小景[1] 储焰南[1] 

机构地区：[1]中科院合肥物质科学研究院医学物理与技术中心

出　　处：《大气与环境光学学报》2015年第1期31-38,共8页Journal of Atmospheric and Environmental Optics

基　　金：安徽省科技攻关项目(1301042095);合肥物质科学研究院院长基金(Y11YL41291);合肥物质科学中心方向性项目(2012FXCX009)资助

摘　　要：为了研究金桂、银桂和丹桂释放的挥发性有机物特征,利用自制的质子转移反应质谱分别检测金桂、银桂和丹桂中的挥发性有机物.在三种漂移管电压(250 V、320 V和461 V)下分别获得了金桂、银桂和丹桂的特征全谱图。研究表明金桂的特征产物离子有m/z=171、105、91、87、73和69,银桂的特征产物离子有m/z=120、105、91、77、73和69,丹桂的特征产物离子有m/z=137、73、69和51。通过比较分析发现三种桂花有共同特征产物离子,但不同品种桂花的特征离子及其强度存在一定的差异性。实验结果表明该仪器可以实现快速检测,利用特征产物离子可对不同品种的桂花进行鉴别。质子转移反应质谱技术已应用于环境监测领域,实验结果对开展环境气体监测研究具有一定的参考意义.To investigate the aurantiacu, the independently characteristics of developed proton volatile organic compounds from thunbergii, latifoliu and transfer reaction mass spectrometer was the compounds. Mass spectra of the compounds from thunbergii, latifoliu and aurantiacu applied to detect at three different voltages of drift tube （250 V, 320 V and 461 V） were obtained. The results showed that m/z of the characteristic product ions of thunbergii were 171, 105, 91, 87, 73 and 69, m/z of ions of latifoliu were 120, 105, 91, 77, 73 and 69, and m/z of ions of aurantiacu were 137, 73, 69 and 51. Through comparative analysis, it was found that there were several common characteristic product ions, but the product ions and its intensity from different species of Osmanthus fragrans presented differences. The experimental results show that the instrument can achieve rapid detection and characteristic product ions can be used to identify different species of Osmanthus fragrans. Proton transfer reaction mass spectrometry has been applied in monitoring volatile organic compounds in environmental and the experimental results have certain reference to environmental gas monitoring.

关 键 词：质子转移反应质谱 金桂 银桂 丹桂 挥发性有机物 

分 类 号：O657.63[理学—分析化学]