Du Yongzhai, Cang Huaiwen, Wang Weiguo, Han Fenglei, Chen Chuang, Li Lin, Hou Keyong, Li Haiyang
Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, People's Republic of China.
Rev Sci Instrum. 2011 Aug;82(8):086103. doi: 10.1063/1.3624690.
A less laborious, structure-simple, and performance-reliable printed circuit board (PCB) based Bradbury-Nielsen gate for high-resolution ion mobility spectrometry was introduced and investigated. The gate substrate was manufactured using a PCB etching process with small holes (Φ 0.1 mm) drilled along the gold-plated copper lines. Two interdigitated sets of rigid stainless steel spring wire (Φ 0.1 mm) that stands high temperature and guarantees performance stability were threaded through the holes. Our homebuilt ion mobility spectrometer mounted with the gate gave results of about 40 for resolution while keeping a signal intensity of over 0.5 nano-amperes.
介绍并研究了一种用于高分辨率离子迁移谱的基于印刷电路板（PCB）的布拉德伯里 - 尼尔森门，其操作更简便、结构简单且性能可靠。该门的基板采用PCB蚀刻工艺制造，在镀金铜线上钻有小孔（Φ 0.1毫米）。两组相互交错的刚性不锈钢弹簧丝（Φ 0.1毫米）耐高温且能保证性能稳定，穿过这些小孔。我们安装了该门的自制离子迁移谱仪，分辨率约为40，同时保持信号强度超过0.5纳安。
