Concurrent estimation of lamivudine, tenofovir disoproxil fumarate, and efavirenz in blended mixture and triple combination tablet formulation by a new stability indicating RP-HPLC method

Future Journal of Pharmaceutical Sciences

Table 3 Concentration and peak areas of linearity level solution of LAMI, TDF, and EVZ

%Level	LAM		TDF		EVZ
%Level	Concentration (μg/mL)	Peak area	Concentration (μg/mL)	Peak area	Concentration (μg/mL)	Peak area
50	15.0	1,343,818	15.0	913,725	20.0	613,391
75	22.5	2,110,176	22.5	1,430,523	30.0	934,415
100	30.0	2,690,079	30.0	1,832,027	40.0	1,216,978
125	37.5	3,422,954	37.5	2,339,804	50.0	1,552,558
150	45.0	4,176,437	45.0	2,842,257	60.0	1,903,481
Regression coefficient (R²)		0.998		0.998		0.998