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Table 5 Percentage of amount found in different samples & comparative correlation of new method with reference methods

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

Sample Compounds % Amount expected % Amount found by new method % Amount found by reference methods ± SD ( n=3)
Sample 1 (Unknown) Methaqualone Phenacetin Paracetamol Saccharin - 12.04 12.45 0.28
- 45.60 45.09 0.36
- 25.08 26.18 0.77
- 15.01 14.31 0.49
Sample 2 (Mixed different proportion of four compounds) Methaqualone Phenacetin Paracetamol Saccharin 25 26.15 24.68 1.03
25 24.49 24.10 0.27
25 23.98 25.35 0.96
25 27.05 26.78 0.19
Sample 3 (Mixed different proportion of four compounds) Methaqualone Phenacetin Paracetamol Saccharin 20 18.92 21.35 1.71
20 21.05 21.69 0.45
30 28.19 30.70 1.77
30 32.11 29.85 1.59
Sample 4 (Mixed different proportion of four compounds) Methaqualone Phenacetin Paracetamol Saccharin 30 31.98 30.51 1.03
30 28.70 31.59 2.04
20 19.25 18.75 0.35
20 22.70 20.96 1.23
Sample 5 (Mixed different proportion of four compounds) Methaqualone Phenacetin Paracetamol Saccharin 35 33.69 36.68 2.11
30 28.18 31.32 2.22
20 21.83 18.96 2.02
   15 13.76 14.13 0.26