Please use this identifier to cite or link to this item: http://nopr.niscair.res.in/handle/123456789/43627
Title: Urease immobilized potentiometric biosensor for determination of urea
Authors: Sihombing, Kawan
Tamba, Monica Chrisdayanti
Marbun, Winry Sulistiani
Situmorang, Manihar
Keywords: Electroanalytical chemistry;Biosensors;Potentiometric biosensors;Enzyme electrode;Tungsten electrode;Immobilized enzyme;Urea
Issue Date: Feb-2018
Publisher: NISCAIR-CSIR, India
Abstract: A simple potentiometric biosensor for the determination of urea is reported in this work. The biosensor has been constructed by immobilization of urease at tungsten electrode using polyvinyl alcohol matrix followed by the sealing process with plasticised polyvinyl chloride. The sensing device gives fast and sensitive response to urea. A linear calibration curve in the concentration range of 0.01–50 mM urea is obtained with slope 42.7 mV per decade urea concentration (r2 = 0.993), and detection a limit of 0.01 mM urea.
Page(s): 175-180
URI: http://nopr.niscair.res.in/handle/123456789/43627
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.57A(02) [February 2018]

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