Simultaneous Determination of Uric Acid and Xanthine Using a Poly(Methylene Blue) and Electrochemically Reduced Graphene Oxide Composite Film Modified Electrode

Table 6

Simultaneous determination of UA and Xa in human urine samples ().

Analye	Original value; (M)	Average; (M)	RSD; (%)	Added; (M)	Recovery; (%)
UA	1.		4.24		97.8
Xa	1.; 1.   ×		3.29		106