Isolation, Characterization, and RP-HPLC Estimation of P-Coumaric Acid from Methanolic Extract of Durva Grass (Cynodon dactylon Linn.) (Pers.)

Table 5

Determination of concentration of P-coumaric acid acid in methanolic extract of durva grass from its precision study.

Trail number	P-coumaric acid
	Area	Concentration; (µg/mL)	Amount; (mg/100 mL extract)
1	2157	4.788	0.478
2	2149	4.77	0.477
3	2159	4.792	0.479
4	2164	4.803	0.480
5	2155	4.783	0.478
6	2174	4.82	0.482
		Mean	0.479
Result		S.D	8.5713
		%RSD	0.3969