量子电子学报, 2013, 30 (2): 138, 网络出版: 2013-04-07  

新型光电子源离子迁移谱在检测四氯化碳中的应用

Detection of tetrachloromethane by a new photoemission ion mobility spectrometry
作者单位
1 中国科学院安徽光学精密机械研究所环境光谱学研究室,安徽 合肥 230031
2 安徽农业大学理学院,安徽 合肥 230036
摘要
利用紫外光照射金属表面产生电子作为离子源,建立了一套光电子源离子迁移谱仪,由于 卤化物具有较强的吸附电子能力,该装置可以应用于卤化物的检测。使用CCl4 样品,得到了 该装置的离子峰强度、半峰宽、分辨率随迁移管电场、离子门脉宽、离子门电压的变化关系, 并进行了简单的理论分析。兼顾离子峰强度与分辨率,得到了优化的实验参数,在该参数下CCl4 的检测限 达到4 ppb, 线性范围跨越2个数量级。
Abstract
With a photoelectron source induced by ultraviolet radiation on mental surface, a photoemission ion mobility spectrometry (PE-IMS) was set up, which can be used to detect halide since halide has a good ability to attach electron. Using CCl4 sample, the evolutions of the ion intensity, full width at half maximum and resolution versus drift electric field, ion gate pulse width and ion gate voltage were obtained, and the reasons for the evolutions were analyzed simply. Taking into account both ion intensity and resolution, optimized experimental parameters were obtained. The PE-IMS has a limit of detection at 4 ppb for CCl4 and its measurable linear dynamics range is over two orders of magnitude in the optimized experimental parameters.

苏得生, 牛文琪, 刘升, 沈成银, 黄超群, 王鸿梅, 江海河, 储焰南. 新型光电子源离子迁移谱在检测四氯化碳中的应用[J]. 量子电子学报, 2013, 30(2): 138. SU De-sheng, NIU Wen-qi, LIU sheng, SHEN Cheng-yin, HUANG Chao-qun, WANG Hong-mei, JIANG Hai-he, CHU Yan-nan. Detection of tetrachloromethane by a new photoemission ion mobility spectrometry[J]. Chinese Journal of Quantum Electronics, 2013, 30(2): 138.

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!