| Solution |
Concentration (mg/mL) |
Inhibition zone diameter (RSD)a |
| Standard 1 (S1) |
0.5 |
17.13 (0.18) |
| Standard 2 (S2) |
1.0 |
19.93 (0.16) |
| Standard 4 (S4) |
2.0 |
22.82 (0.18) |
| Sample A (XA) |
Unknown |
20.10 (0.17) |
| Sample B (XB) |
Unknown |
20.10 (0.18) |
| Sample C (XC) |
Unknown |
19.92 (0.20) |
a Results calculated from six plates |
