Simultaneous detection of ammonia and humidity using transmission surface plasmon resonance technique
Simultaneous detection of ammonia and humidity using transmission surface plasmon resonance technique
复制标题
利用透射表面等离子体共振技术同时检测氨和湿度
DOI：
10.1080/15421406.2019.1645466
复制
发表时间：
2019
影响因子：
0.7
通讯作者：
Kato Keizo
中科院分区：
文献类型：
--
作者：
Takano Tomohiro;Lertvachirapaiboon Chutiparn;Ohdaira Yasuo;Baba Akira;Shinbo Kazunari;Kato Keizo
利用透射式表面等离子体共振（T-SPR）技术实现了气体传感。聚丙烯酸（PAA）/5 nm厚的金/40 nm厚的银/聚碳酸酯光栅基板结构（传感器A）响应于氨;然而，它表现出强烈的湿度依赖性。还制备了作为传感材料的聚乙烯醇（PVA）/5 nm厚的金/40 nm厚的银/聚碳酸酯光栅衬底结构（传感器B），并且其主要响应于湿度。传感器A和B的T-SPR特性通过堆叠布置同时观察，这使得我们能够通过使用单个分光光度计获得响应。通过传感器A和B的同时测量，可以准确地获得各种湿度条件下的氨浓度。
Gas sensing by using the transmission surface plasmon resonance (T-SPR) technique was demonstrated. Polyacrylic acid (PAA)/5-nm-thick gold/40-nm-thick silver/polycarbonate grating substrate structure (Sensor A) responded to ammonia; however, it exhibited a strong humidity dependence. Polyvinyl alcohol (PVA)/5-nm-thick gold/40-nm-thick silver/polycarbonate grating substrate structure (Sensor B) as the sensing material was also prepared and it mainly responded to humidity. The T-SPR properties of Sensors A and B were observed simultaneously by a stacking arrangement that enabled us to obtain the responses by using a single spectrophotometer. The ammonia concentration under various humidity conditions could be accurately obtained by simultaneous measurement of Sensors A and B.