基于纳米β分子筛的石英晶体微天平沙林传感器研究  

Sensors Based on Nano-zelite β for Sarin Detection

作　　者：肖艳华[1] 陈传治[1] 左伯莉[1] 

机构地区：[1]防化指挥工程学院化学防护系,北京102205

出　　处：《分析科学学报》2012年第3期414-416,共3页Journal of Analytical Science

摘　　要：以纳米β(Cuβ)分子筛为敏感膜,结合石英晶体微天平(QCM)制备了对神经毒剂沙林(GB)敏感的传感器。结果表明,纳米β(Cuβ)分子筛对GB响应较纳米ZSM-5更灵敏,在热空气吹扫下可连续多次检测,其灵敏度为23.6Hz/(mg.m-3)(26.8Hz/(mg.m-3)),检出限(S/N=3)为0.96mg.m-3(0.90mg.m-3);线性范围1.50～18.24mg.m-3,线性相关系数为0.9910(0.9888)。该法在毒剂检测中具有一定的应用前景。A new quartz crystal microbalance（QCM）sensors based on nano-βor nano-Cuβsensitive films for sarin detection was developed.The results showed that the sensor modified with nano-βor nano-Cuβ gave more sensitive responses and could be used repeatedly under the hot air,it has a sensitivity of 23.6 Hz/（mg.m-3）（26.8Hz/（mg.m-3））,and the linear response rang of sarin was 1.50～18.24mg.m-3（r2=0.9910（0.9888））with a detection limit of 0.96mg.m-3（0.90mg.m-3）（S/N=3）.The sensor shows a potential applicability in detecting toxic gases.

关 键 词：分子筛 石英晶体微天平 沙林 传感器 

分 类 号：O657[理学—分析化学]