کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10410387 | 894437 | 2005 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Electronic nose technology for the detection of microbial and chemical contamination of potable water
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Electronic nose technology for the detection of microbial and chemical contamination of potable water Electronic nose technology for the detection of microbial and chemical contamination of potable water](/preview/png/10410387.png)
چکیده انگلیسی
Comparisons were made between two electronic nose systems employing conducting polymer sensor arrays for the early detection and discrimination between bacterial species (Escherichia coli, Enterobacter aerogenes and Pseudomonas aeruginosa, 102 CFU mLâ1), fungal spores (Aspergilus fumigatus, Fusarium culmorum and Penicillium sp., 102 spores mLâ1) and trace amounts (ppb) of pesticides (DDT and dieldrin). Using PCA, DFA and cluster analysis, it was possible to differentiate between the different bacterial and fungal species after 24 h incubation at 25 °C. However, 10 and 100 ppb of the pesticides could not be effectively discriminated from the controls. For bacterial contaminants good correlation between the two different electronic nose systems was possible. Head-space solid phase microextraction (HS-SPME) technique with a gas chromatograph, was used to evaluate and analyse volatile profiles of bacterial cells inoculated in the presence of trace amounts of heavy metals. The resulting chromatograms demonstrated that the volatile patterns from bacterial samples were different from those where a low amount of heavy metals were added.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 106, Issue 1, 29 April 2005, Pages 3-6
Journal: Sensors and Actuators B: Chemical - Volume 106, Issue 1, 29 April 2005, Pages 3-6
نویسندگان
O. Canhoto, N. Magan,