Determination of urea in urine using a conductivity cell with surface acoustic wave resonator-based measurement circuit

A new urea sensor based on combining the

A new urea sensor based on combining the surface acoustic wave device with urease extracted from green soya bean and its application— determination of urea in human urine

✍ Dezhong Liu; Kang Chen; Kai Ge; Lihua Nie; Shouzhuo Yao 📂 Article 📅 1996 🏛 Elsevier Science 🌐 English ⚖ 570 KB

The urea sensor was prepared by combining a surface acoustic wave (SAW) device, in which a SAW resonator operating at 61 MHz and a pair of parallel electrodes were used in series, with urease extracted from green soya bean. The Michaelis constant and maximum reaction rate of the urease were estimate