کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7148388 1462102 2013 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Highly-sensitive and selective detection of hydrazine at gold electrode modified with PEG-coated CdS nanoparticles
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Highly-sensitive and selective detection of hydrazine at gold electrode modified with PEG-coated CdS nanoparticles
چکیده انگلیسی
PEG-coated CdS nanoparticles (P-CdS NPs) modified gold (CdS/Au) electrode has been used as an efficient electron mediator for the fabrication of highly sensitive chemical sensor for detection of hydrazine, which is a well known neurotoxin and carcinogen. P-CdS NPs of mean diameter 15 nm and hexagonal crystallites have been synthesized using microwave irradiation method and characterized by various techniques. The prepared CdS/Au electrode has been used for detection of hydrazine which yields a high sensitivity of 89 μA/cm2 μM and detection limit of 0.061 μM. The response time of sensor is <4 s and sensor responded linearly for concentration range of 100-1000 nM. The sensor has also been found to be selective for hydrazine even in presence of common interferents. Moreover, the sensor has been tested for analysis of real world samples, which makes it useful in practical area of environment applications.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 188, November 2013, Pages 372-377
نویسندگان
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