Preparation of Platinum Nanoparticles-Graphene Modified Electrode and Selective Determination of Rutin

Table 2

Determination of rutin in tablet*.

No.	Content (mg/tablet)	Added in sample (10^−2 mg/L)	Found in sample (10^−2 mg/L)	Recovery (%)
1	20.2	1.01	1.05	104
2	20.4	1.02	1.05	103
3	19.6	1.47	1.39	95

*The marker is 20 mg/tablet.