Electrochemical sensing for the detection of 2,4-dichlorophenoxy acetic acid using molecularly imprinted polymer membrane
IR@NPL: CSIR-National Physical Laboratory, New Delhi
View Archive Info| Field | Value | |
| Title |
Electrochemical sensing for the detection of 2,4-dichlorophenoxy acetic acid using molecularly imprinted polymer membrane
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| Creator |
Singh, Krishna Pal
Ahalawat, Saurabh Prajapati, Ramesh Kumar Kumar, Satish Singh, Prashant Dhawan , Sandeef Kumar |
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| Subject |
Chemistry
Electrochemistry Physics |
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| Description |
Molecularly imprinted polymer (MIP) membranes were used to develop highly sensitive chemical sensors for the detection of herbicide 2,4-dichlorophenoxy acetic acid (2,4-D). The 2,4-D imprinted composite MIP membranes were prepared, and the characterization was done by UV-VIS spectrophotometer, Fourier transform infrared spectroscopy, and scanning electron microscopy, and the same were fitted in a new electrochemical sensor model. Membrane electroconductivity measurements were performed by applying a small-amplitude alternating voltage (20 mV) with a varying frequency from 20 Hz to 80 kHz generated by a lowfrequency wave form generator. The measured changes in the membrane ionic/electric conductivity as a function of 2,4-D concentration was allowed to evaluate the recognition
properties of the prepared membrane. This sensor is useful in detecting 2,4-D herbicide having concentration range 10-3M to 10-6M. The cross-selectivity of the sensor, reproducibility of results, and reusability of MIP membrane were examined and found remarkable and recommendable.
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| Publisher |
Springer Verlag
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| Date |
2010-01-17
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://npl.csircentral.net/121/1/95.pdf
Singh, Krishna Pal and Ahalawat, Saurabh and Prajapati, Ramesh Kumar and Kumar, Satish and Singh, Prashant and Dhawan , Sandeef Kumar (2010) Electrochemical sensing for the detection of 2,4-dichlorophenoxy acetic acid using molecularly imprinted polymer membrane. Ionics , 16 (6). pp. 529-537. ISSN 1862-0760 |
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| Relation |
http://www.springerlink.com/content/t4x0p73012030835/
http://npl.csircentral.net/121/ |
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