Table 1.

Predicted concentrations of pure lamivudine samples in 0.1 M hydrochloric acid ± relative errors as calculated from CLS and PCR calibration methods.

Concentrations (μg ml−1)	CLS		PCR
	Found (μg ml−1)	% ±Relative errorsa	Found (μg ml−1)	% ±Relative errorsa
2.00	2.06	101.00 ± 1.88	1.98	98.80 ± 2.11
3.00	3.06	98.67 ± 2.21	2.99	99.73 ± 2.23
4.00	3.92	98.00 ± 1.88	3.99	99.68 ± 1.96
5.00	4.93	98.80 ± 2.00	5.07	101.40 ± 1.77
6.00	5.87	99.17 ± 2.37	6.04	100.67 ± 1.98
7.00	6.96	99.43 ± 1.42	6.95	99.21 ± 1.45
8.00	8.03	100.40 ± 1.80	7.98	99.70 ± 2.00
9.00	9.04	100.41 ± 1.98	9.08	100.89 ± 1.14
10.00	10.00	100.00 ± 1.85	10.13	101.30 ± 1.56
11.00	10.93	99.40 ± 0.89	10.87	98.82 ± 1.78

^aRelative errors as calculated from the corresponding calibration model (n = 3).