Simultaneous identification and quantification of canrenone and 11-α-hydroxy-canrenone by LC-MS and HPLC-UVD.
J Biomed Biotechnol
; 2011: 917232, 2011.
Article
in En
| MEDLINE
| ID: mdl-22203787
ABSTRACT
A procedure for simultaneous identification and quantification of canrenone and its biotransformed product 11-α-hydroxy-canrenone by high-performance liquid chromatography with ultraviolet detector (HPLC-UVD) and mass spectrometry (LC-MS) methods was proposed. The optimal determination variables on the HPLC-UVD or LC-MS coupled with a ZORBAX Eclipse XDB-C18 column (150 mm × 4.6 mm, 5 µm) were set as follows detection wavelength of 280 nm, mobile phase of water and methanol gradient elution, temperature for the chromatographic column of 30°C, flow rate of mobile phase of 0.8 mL/min, sample injection volume of 5 µL, and elution time of 40 min. The MS conditions were set as follows the flow rate of sheath gas, aux gas, and sweep gas were kept at 35 arb, 5 arb, and 0 arb, respectively. The temperature of capillary was held at 300°C, and capillary voltage was set at 30.00 V. Tube lens were performed at 100.00 V. The proposed method was validated by linearity (r² ≥ 0.9910), average recovery (94.93%, RSD1.21%), precision (RSD ≤ 1.31%), limit of detection, and limit of quantification (LOD 0.1~0.12 mg/L, LOQ 0.5~0.67 mg/L), which proved to be affordable for simultaneously determining canrenone and its bio-transformed product 11-α-hydroxy-canrenone.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Mass Spectrometry
/
Canrenone
/
Chromatography, High Pressure Liquid
Type of study:
Diagnostic_studies
/
Prognostic_studies
Language:
En
Journal:
J Biomed Biotechnol
Journal subject:
BIOTECNOLOGIA
/
MEDICINA
Year:
2011
Document type:
Article
Affiliation country:
China