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

Table 1

Statistical evaluation of linear part of calibration dependence of MET and SITA.

Parameter	MET	SITA
Range (ng/band)	500–10000	50–1000
Slope	3.3592	2.5678
Intercept	+6273	+453
𝑟	0.9995	0.9991