Research Article

Cloud-Point Extraction Combined with Liquid Chromatography for the Determination of Ergosterol, a Natural Product with Diuretic Activity, in Rat Plasma, Urine, and Faeces

Table 2

Absolute recoveries of ergosterol in rat plasma, urine, and faeces.

Added concentration ( g/mL)Found concentration (mean ± SD, g/mL)Recovery (%) RSD %

Plasma
 0.25 90.85.2
 0.75 90.42.8
 2.00 91.63.4
Urine
 0.25 92.43.5
 0.75 93.73.8
 2.00 91.32.4
Faeces
 0.25 93.24.7
 25 93.62.2
 100 94.32.8