Table 1.

Results of calibration, LOD, and LOQ of pellitorine, sarmentine and sarmentosine by HPLC with UV detection at 260 nm.

Standards	Linear regression equation	R 2	Linear range (ng mL−1)	LOD (ng mL−1)	LOQ (ng mL−1)
Pellitorine	Y = 0.2156X−0.0333	1.0000	10–500	3.00	10.00
Sarmentine	Y = 0.0985X−1.2335	0.9979	10–1500	3.00	10.00
Sarmentosine	Y = 0.0424X−1.4979	0.9999	80–12000	20.00	80.00