Yang Mo, Kim Tae-Young, Hwang Hyun-Chul, Yi Seok-Kyung, Kim Do-Hoon
Analytical Instrumentation Research Institute, Sam Yang Chemical Company, Seoul, Korea.
J Am Soc Mass Spectrom. 2008 Oct;19(10):1442-8. doi: 10.1016/j.jasms.2008.05.011. Epub 2008 May 24.
A palm portable mass spectrometer (PPMS) has been developed with a weight of 1.48 kg (3 lb) and a size of 1.54 L (8.2 x 7.7 x 24.5 cm(3)) that can be operated with an average battery power of 5 W. A miniaturized ion trap has been used as a mass analyzer that consists of four parallel disks with coaxial holes. A rf voltage of 1500 V(p-p) at 3.9 MHz has been used for scanning ion mass of up to m/z 300. An ion-getter pump serves for high vacuum of the PPMS. Sample gas was introduced in pulse mode. An embedded microcomputer has been developed for system control. Detection of organic gases diluted in the air has been demonstrated up to 6 ppm for toluene and 22 ppm for dimethyl methylphosphonate (DMMP). Performance results suggest usefulness of the PPMS as a personal mobile device for detection/identification of chemical warfare agents in the field.
已开发出一种掌上便携式质谱仪（PPMS），其重量为1.48千克（3磅），体积为1.54升（8.2×7.7×24.5立方厘米），平均电池功率为5瓦时即可运行。一种小型化离子阱被用作质量分析器，它由四个带有同轴孔的平行圆盘组成。在3.9兆赫兹时使用1500伏（峰-峰值）的射频电压扫描高达m/z 300的离子质量。一个吸气剂泵用于PPMS的高真空。样品气体以脉冲模式引入。已开发出一个嵌入式微型计算机用于系统控制。已证明该仪器可检测空气中稀释的有机气体，对甲苯的检测限高达6 ppm，对甲基膦酸二甲酯（DMMP）的检测限高达22 ppm。性能结果表明，PPMS作为一种个人移动设备在现场检测/识别化学战剂方面具有实用性。
