Simultaneous Identification and Quantification of Canrenone and 11-α-Hydroxy-Canrenone by LC-MS and HPLC-UVD

Table 4

Precisions of HPLC-UV method for canrenone and 11-α-Hydroxy-canrenone.

Time (h)	Content (g/L)		Mean content (g/L)		RSD%
	a	b	a	b	a	b
0; 4; 8; 12; 18; 24	1.3813; 1.3842; 1.3930; 1.3516; 1.3760; 1.3844	1.8343; 1.9036; 1.8679; 1.8650; 1.8834; 1.8444	1.3784	1.8664	1.03	1.35

^aCanrenone.
^b11-α-hydroxy-canrenone.