Table 13 Method accuracy in pH 6.8 buffer via the reciprocating cylinder method.
Concentration | Amount added (mg) | Amount calculated (mg) | Recovery (%) | Average (%) | RSD (%) |
|---|---|---|---|---|---|
5% level 1 | 25.23 | 25.81 | 102.3 | 105.8 | 3.3 |
5% level 2 | 25.58 | 27.96 | 109.3 | ||
5% level 3 | 25.45 | 26.91 | 105.8 | ||
50% level 1 | 250.93 | 262.47 | 104.6 | 102.8 | 1.6 |
50% level 2 | 249.83 | 256.42 | 102.6 | ||
50% level 3 | 249.92 | 252.92 | 101.2 | ||
100% level 1 | 499.88 | 501.38 | 100.3 | 100.9 | 1.5 |
100% level 2 | 499.58 | 512.57 | 102.6 | ||
100% level 3 | 499.58 | 498.98 | 99.88 | ||
120% level 1 | 600.51 | 607.19 | 101.1 | 101.2 | 0.2 |
120% level 2 | 600.79 | 609.92 | 101.5 | ||
120% level 3 | 600.21 | 606.78 | 101.1 |
