A Method in Urea Sensor Fabrication Based Immobilization Diacetylmonoxime-Thiosemicarbazide onto Silica Paper

Fauziyah, Begum and Maimunah, Siti and Hakim, Abdul and Sugihantoro, Hajar (2015) A Method in Urea Sensor Fabrication Based Immobilization Diacetylmonoxime-Thiosemicarbazide onto Silica Paper. Advances in Environmental Biology, 9 (23). pp. 242-244.

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Abstract

Background: The color changing is one of variables that can be used as an indicator of analysis by urea sensor. It can be conversed in Δmean RGB value by adobe photoshop programme.

Objectives: This paper suggests an optimum way to fabricate urea sensor using immobilization of diacetylmonoxime and thiosemicarbazide reagents onto silica papers. The variables that tested were the immoblization techniques, the concentration of reagent diacetylmonoxime (DAM) and the concentration of reagent thiosemicarbazide (TSC).

Results: immobilization of reagent onto silica paper was done by spraying, coating and spoting technique. The high Δmean RGB value was given by spoting techniques. The DAM variant concentration (40;100;160 mmol/L) produced 55,22, 64,89 and 69,05 for their Δmean RGB value. The TSC variant concentration (4;8;16 mmol/L) produced 57,17, 64,94 and 62,88 for their Δmean RGB value.

Conclusion: The best immobilization tecgnique in urea sensor fabrication was spotting; the best concentrations of DAM/TSC in urea sensor fabrication were 160 mmol/L and 8 mmol/L.

Item Type: Journal Article
Keywords: Urea sensor; immobilization; Diacetylmonoxime; thiosemicarbazide
Divisions: Faculty of Medical and Health Sciences > Department of Pharmacy
Depositing User: Faizuddin Harliansyah
Date Deposited: 06 Jun 2018 05:56

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