Preparation and determination of desethylamiodarone in dog lung by HPLC-MS.
A novel method was developed for the preparation and determination of desethylamiodarone in dog lung by high-performance liquid chromatography (HPLC) with amiodarone as a standard. The selected dog was orally given amiodarone, then executed and the active metabolite desethylamiodirone in lung tissue was isolated, concentrated and purified by Waters C18 column (25 mm x 250 mm, 10 microm) with mobile phase of acetonitrile-100 mmol/L acetic acid containing 15 mmol/L diethylamine (55:45 v/v) at a flow rate of 10.0 mL/min. Hypersil ODS2 column (4.6 mm x 250 mm 5 microm) was used to analyze amiodarone and desethylamiodarone, with the same mobile phase at a flow rate of 1.0 mL/min, the detection wavelength was 237.5 nm. Atmosperic pressure electronic spray ionization (AP-ESI) and ion mass spectral (m/z) of 618.1(M + H) were selected to validate desethylamiodarone. The f(i) of desethylamiodarone and amiodarone were 1.04 +/- 0.02 and 1.020 +/- 0.01, respectively. It indicated that desethylamiodarone can be separated and purified by preparational HPLC after Mass Spectrometry (MS) validation and quantified according to f(i) of amiodarone indirectly. The proposed method enables the preparation and determination of desethylamiodarone in dog lung successfully.
Pharmacy of Shandong Traffic Hospital, Jinan, China.
Liu Xue
LX
Hong
Yang Chuan
YC
Ying
Zheng
Z
Lei
Guo Rui
GR
Chen
D000638:Amiodarone / Q000031:analogs & derivatives* / Q000032:analysis / Q000493:pharmacokinetics; D000818:Animals; D002851:Chromatography, High Pressure Liquid; D004285:Dogs; D008168:Lung / Q000737:chemistry*; D008297:Male; D013058:Mass Spectrometry; D015203:Reproducibility of Results; D013056:Spectrophotometry, Ultraviolet
C036116:desethylamiodarone; D000638:Amiodarone