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Table 4 Showing intraday and interday reproducibility data

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

Compound

Intraday recovery value (n=6)

± S.D

Interday recovery value (3 days)

± S.D

Saccharin

100.02, 101.31, 100.98, 99.99, 104.53, 101.54

1.66

100.02, 104.34, 102.54

2.16

Phenacetin

99.99, 99.87, 101.72, 103.64, 101.73, 100.11

1.47

98.99, 101.76, 102.70

1.92

Paracetamol

101.43, 102.70, 101.11, 100.68, 101.99, 99.76

1.02

101.43, 104.37, 104.01

1.60

Methaqualone

100.54, 100.96, 102.73, 101.13, 100.02, 99.99

1.05

100.54, 98.67, 103.54

2.45