Future Journal of Pharmaceutical Sciences

Table 7 Robustness data for nateglinide and metformin HCl

From: A stability indicating UPLC method development and validation for the simultaneous estimation of nateglinide and metformin hydrochloride in bulk and tablet dosage form

Injection	Nateglinide				Metformin HCL
Injection	FR (−)	FR (+)	MP (−)	MP (+)	FR (−)	FR (+)	MP (−)	MP (+)
1	532,479	504,217	556,479	494,788	3,290,290	2,456,263	3,083,632	2,633,880
2	536,623	503,989	555,422	494,251	3,247,134	2,465,645	3,078,701	2,614,596
3	533,741	502,638	558,759	496,698	3,269,784	2,476,136	3,065,592	2,646,661
Mean	534,281	503,615	556,887	495,246	3,269,069	2,466,015	3,075,975	2,631,712
SD	2124.1	853.5	1705.4	1286.1	21,586.9	9941.7	9323.8	16,142.0
% RSD	0.40	0.17	0.31	0.26	0.66	0.40	0.30	0.61

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