کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7149155 | 1462114 | 2013 | 32 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The development of sensors for volatile nitro-containing compounds as models for explosives detection
ترجمه فارسی عنوان
توسعه سنسورهای ترکیبات حاوی نیتروژن فرار به عنوان مدل برای شناسایی مواد منفجره
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کلمات کلیدی
شیمی درمانی، سنسورهای انفجاری پلیمر میکروسژنر، الکترو پلیمریزاسیون،
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
Sensors capable of detecting explosives or their degradation products are important devices needed to safeguard citizens and infrastructure. We report on the sensor application of novel customized polymer films that we have produced to have high affinity for chemical vapors containing the nitro (NO2) group, which is found in explosives such as TNT and DNT. We have used localized electrochemical growth of these polymers to realize miniature, high-selectivity capacitive sensors based on interdigitated electrodes (IDEs). These sensors have been tested for response to vapors of nitrobenzene and 2-nitrotoluene as model analytes for nitro vapors generated from explosive compounds. The sensors were demonstrated to be reversible and to have a very high selectivity to nitro-bearing compounds. In the ppm concentration region, our sensors exhibited a linear response up to three orders of magnitude higher to nitro groups than to other common volatile chemicals found in the atmosphere, which we believe is the highest selectivity to nitro compounds reported from a polymer-based chemicapacitor sensor.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 176, January 2013, Pages 534-542
Journal: Sensors and Actuators B: Chemical - Volume 176, January 2013, Pages 534-542
نویسندگان
Robert Blue, Zuzana Vobecka, Peter J. Skabara, Deepak Uttamchandani,