Samples at 1.0 mg References standard concentration (mg) Added Found R.S.D (%) n=3 Recovery (%) Mean recovery (%)
Doxycycline(1714.717-1649.138 cm-1) 0.20 0.20 0.50 0.49 0.80 0.80 2.05 99.01  
2.58 99.19 99.63
1.91 100.70  
Table 2: Method accuracy results for doxycycline in raw material.