A Simple and Sensitive HPTLC Method for Simultaneous Determination of Metformin Hydrochloride and Sitagliptin Phosphate in Tablet Dosage Form

Table 2

The recovery studies of MET and SITA.

Compound	Amount taken; (ng)	Amount added; (ng)	Recovery (%) ± RSD (%); (𝑛=3)
	3000	1000	99.39 ± 1.10
MET	3000	3000	101.64 ± 1.01
	3000	5000	98.14 ± 1.06
	300	100	100.57 ± 0.73
SITA	300	300	99.29 ± 1.08
	300	500	101.06 ± 0.71