Fig. 6

LSV findings of sarcosine detection in 0.1 M PBS (pH 7.4) by CoNiWBO/rGO with different parameters, (A) concentrations of 0.1, 10, 20, 30, 40, 50 µM, (B) line graph between sarcosine concentration and current, (C) pH of 7.8, 7.6, 7.4, 7.2, 7.0, 6.8, and (D) line graph between pH and current.