Majeed Al-Shaker, Y. (2011). Determination of urea using flow injection Electroche mical detector and fresh bean paste electrode application to blood plasma. , 16(3), 146-152.
Yusra Majeed Al-Shaker. "Determination of urea using flow injection Electroche mical detector and fresh bean paste electrode application to blood plasma". , 16, 3, 2011, 146-152.
Majeed Al-Shaker, Y. (2011). 'Determination of urea using flow injection Electroche mical detector and fresh bean paste electrode application to blood plasma', , 16(3), pp. 146-152.
Majeed Al-Shaker, Y. Determination of urea using flow injection Electroche mical detector and fresh bean paste electrode application to blood plasma. , 2011; 16(3): 146-152.

Determination of urea using flow injection Electroche mical detector and fresh bean paste electrode application to blood plasma

Tikrit Journal of Pure Science
Article 1, Volume 16, Issue 3, 2011, Pages 146-152
Author
Yusra Majeed Al-Shaker
Abstract
This work is a detailed investigation of the voltammetric flow injection analysis by using fresh bean paste biosensor for the determination of trace amounts of urea. This method depends on the hydrolysis of urea by urease enzyme which exists in the fresh bean, to bicarbonate ion and ammonium ion using phosphate buffer solution (pH=7) and reduction potential of (-0.65) V. The determination limits are (10-100)µg/ml with r2=0.995, a relative standard deviation of (0.59 to4.16).The method has been applied successfully to determination of urea in human plasma.
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