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Table 3 Showing the recovery and precision data

From: Simultaneous determination of methaqaulone, saccharin, paracetamol, and phenacetin in illicit drug samples by hplc

Compound Expected amount Amount recovered in ng % Recovery ±SD [ % n=3 ]
Saccharin 600 600.16 100.02 4
1000 1005.83 100.58 2.51
1400 1408 100.57 3.51
Phenacetin 500 499.5 99.99 2.38
1000 1015.33 101.53 2.73
1500 1507.5 100.5 2.59
Paracetamol 500 507.16 101.43 2.27
1000 1004.83 100.48 4.14
1500 1500.66 100.04 4.66
Methaqualone 400 402.16 100.54 2.07
600 598.33 99.72 3.28
  800 797.66 99.70 2.83