کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7596561 1492125 2015 30 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Detection of heavy metal ions in contaminated water by surface plasmon resonance based optical fibre sensor using conducting polymer and chitosan
ترجمه فارسی عنوان
تشخیص یون های سنگین فلزات در آب آلوده توسط حسگر فیبر نوری مبتنی بر رزونانس سطح پلاسما با استفاده از پلیمر و کیتوزان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
Optical fibre surface plasmon resonance (SPR) based sensor for the detection of heavy metal ions in the drinking water is designed. Silver (Ag) metal and indium tin oxide (ITO) are used for the fabrication of the SPR probe which is further modified with the coating of pyrrole and chitosan composite. The sensor works on the wavelength interrogation technique and is capable of detecting trace amounts of Cd2+, Pb2+, and Hg2+ heavy metal ions in contaminated water. Four types of sensing probes are fabricated and characterised for heavy metal ions out of these pyrrole/chitosan/ITO/Ag coated probe is found to be highly sensitive among all other probes. Further, the cadmium ions bind strongly to the sensing surface than other ions and due to this the sensor is highly sensitive for Cd2+ ions. The sensor's performance is best for the low concentrations of heavy metal ions and its sensitivity decreases with the increasing concentration of heavy metal ions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Chemistry - Volume 166, 1 January 2015, Pages 568-575
نویسندگان
, ,