Level

Amount of sample taken (ng/band)

Amount of standard spiked (ng/band)

Area

% Recovery

Mean

± %RSD

50%

400

200

11,246.1

98.8

100.172 ± 1.196

10,666.8

101.007

10,650.6

100.710

100 %

400

400

11,977.6

100.992

99.779 ± 1.325

12,916.4

998.371

12,033.4

99.975

150%

400

600

14,046.4

99.865

99.222 ± 0.660

13,989.9

99.245

13,627

98.556