Patel Sanjay V, Hobson Stephen T, Cemalovic Sabina, Mlsna Todd E
Seacoast Science, Inc., 2151 Las Palmas Drive Suite C, Carlsbad, CA 92011, USA.
Talanta. 2008 Aug 15;76(4):872-7. doi: 10.1016/j.talanta.2008.04.035. Epub 2008 Apr 24.
Methyl salicylate (MeS) is used as a chemical warfare agent simulant to test chemical protective garments and other individual personal protective gear. The accurate and real-time detection of this analyte is advantageous for various testing regimes. This paper reports the results of MeS vapor exposures on polymer-filled capacitance-based sensors at temperatures ranging from 15 degrees C to 50 degrees C under dry and humid conditions. Multiple capacitors were arranged in an array on a silicon chip each having a different sorptive polymer. The sensors used parallel-plate electrode geometry to measure the dielectric permittivity changes of each polymer when exposed to water and MeS vapor. Of the four polymers tested against MeS, the optimal polymer displayed near or sub-parts-per-million detection limits at 35 degrees C (0-80%RH).
水杨酸甲酯（MeS）被用作化学战剂模拟物，以测试化学防护服和其他个人防护装备。对该分析物进行准确实时检测有利于各种测试方案。本文报道了在干燥和潮湿条件下，温度范围为15摄氏度至50摄氏度时，聚合物填充的电容式传感器对MeS蒸汽暴露的结果。多个电容器排列在硅芯片上的阵列中，每个电容器都有不同的吸附性聚合物。这些传感器采用平行板电极几何结构，以测量每种聚合物在暴露于水和MeS蒸汽时的介电常数变化。在针对MeS测试的四种聚合物中，最佳聚合物在35摄氏度（0-80%相对湿度）下显示出接近或低于百万分之一的检测限。
