@article {Soleimani:2013:1546-198X:1983,title = "High Selective Methadone Sensor Based on Molecularly Imprinted Polymer Carbon Paste Electrode Modified with Carbon Nanotubes",
journal = "Sensor Letters",
parent_itemid = "infobike://asp/senlet",
publishercode ="asp",
year = "2013",
volume = "11",
number = "10",
publication date ="2013-10-01T00:00:00",
pages = "1983-1991",
itemtype = "ARTICLE",
issn = "1546-198X",
eissn = "1546-1971",
url = "http://www.ingentaconnect.com/content/asp/senlet/2013/00000011/00000010/art00021",
doi = "doi:10.1166/sl.2013.3019",
keyword = "MULTI WALLED CARBON NANOTUBES, METHADONE, MOLECULARLY IMPRINTED POLYMER, CARBON PASTE ELECTRODE"
abstract = "We demonstrate here a novel carbon paste electrode approach able to determine methadone in physiological samples without the need of sample pre-treatment. The selective carbon paste electrode based on molecularly imprinted polymer is modified with multi wall carbon nanotubes. The molecularly
imprinted polymer is used as a recognition element in the carbon paste electrode structure and the multi wall carbon nanotubes are incorporated in the structure of carbon paste electrode to improve both the conductivity and the transduction of the composite. In this method, methadone is firstly
extracted from the sample into the sensor and subsequently the extracted methadone amount is determined by differential pulse voltammetry. The selective molecularly imprinted polymer cavities for methadone are prepared by bulk polymerization technique. Methadone is used as a template in the
polymerization step. This polymer is characterized on the basis of fourier transform infrared spectroscopy and thermal analysis. The sensor is characterized in terms of carbon paste electrode composition. Furthermore, extraction step is optimized respect to pH, sample matrix, stirring rate
and extraction time. An optimum electrochemical response is obtained for differential pulse voltammetry method in 0.1 mol \textperiodcentered L1 phosphate buffered solution at pH 7. The electrode shows a wide dynamic linear range for methadone from 107 to 102
mol\textperiodcenteredL1. The observed detection limit and RSD are 108 mol\textperiodcenteredL1 and 1.5%, respectively. Finally, the proposed method is applied for the determination of methadone in urine and medicinal tablet.",
author = "Soleimani, Majid and Afshar, Majid Ghahraman and Ganjali, Mohammad Reza",
}