A Liquid Chromatography-Tandem Mass Spectrometry Method for Evaluation of Two Brands of Enalapril 20 mg Tablets in Healthy Human Volunteers

Table 2

Calibration function parameters during method validation by using LC-MS/MS.

Calibration curve number	Enalapril			Enalaprilat
		Slope	Intercept		Slope	Intercept
1	0.9994	0.00679	0.00133	0.9996	0.00398	0.00104
2	0.9994	0.00666	0.00147	0.9996	0.00373	0.00175
3	0.9996	0.00694	0.00077	0.9994	0.00379	0.00137
4	0.9996	0.00695	0.00042	0.9998	0.00401	0.00097
5	0.9998	0.00697	0.00097	0.9998	0.00404	0.00120
6	1.0000	0.00712	0.00030	0.9990	0.00406	0.00129
Mean	0.9996	0.00691	0.00088	0.9995	0.00394	0.00127
STD	0.0002	0.00016	0.00047	0.0003	0.00014	0.00028
CV%	0.0234			0.0302