Study of Calcination Temperatures of Pillared Bentonite to the Performance of Cyanide Biosensor and its Application to Determine Cyanide in Cassava

Study of Calcination Temperatures of Pillared Bentonite to the Performance of Cyanide Biosensor and its Application to Determine Cyanide in Cassava

Catherina Bijang Abd. Wahid Wahab Ahyar Ahmad Paulina Taba 

Chemistry Department, Mathematic and Natural Science Faculty,Pattimura University, Indonesia

Chemistry Department, Mathematic and Natural Science Faculty,Hasanuddin University, Indonesia

Page: 
5-8
|
DOI: 
https://doi.org/10.14447/jnmes.v18i1.381
Received: 
June 11, 2014
|
Accepted: 
December 15, 2014
|
Published: 
February 09, 2015
| Citation
Abstract: 

Amperometric biosensors for determining cyanide which are accurate, cheap and practical have been made. The biosensor used a modified bentonite as a electerode membrane. Current measured by a potensiostat with a Cyclic Voltametry method. Study of calcination temperature on pillarization of bentonite and thickness of bentonite membrane was conducted to get electrode with the best performance. The performance was tested using : Cathecol linearity, maximum inhibition percentage, cyanide linearity, detection limit and sensitivity. The data showed that electrode with membrane of bentonite pillarized at 250 C and the thickness is 5 mg/mL had the best performance.

Keywords: 

 Biosensor, Cyanide, Pillared-Bentonite, Tyrosinase 

1. Introduction
2. Experimental
3. Results and Discussion
4. Conclusion
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