Table 2: Recovery of chloramphenicol and penicillin G in raw cow milk.

Added, ng/mL Recovered, ng/mL Recovery, %
Chloramphenicol Penicillin G Chloramphenicol Penicillin G Chloramphenicol Penicillin G
1 2 1.04 1.98 104.00 99.00
5 10 5.10 10.12 102.00 101.20
10 30 9.94 31.00 99.40 103.30
30 80 31.50 82.00 105.00 102.50