Determination of cinobufagin and resibufogenin in liver tissue by HPLC-MS/MS / 法医学杂志
Journal of Forensic Medicine
;
(6): 268-272, 2013.
Article
Dans Chinois
| WPRIM
| ID: wpr-983834
ABSTRACT
OBJECTIVE@#To develop a sensitive and accurate assay for detecting cinobufagin and resibufogenin in liver tissue using high performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS).@*METHODS@#The homogenization of liver tissue with internal standard dexamethasone was extracted with dichloromethane. The extracts with methanol were purified through ProElut C18 solid phase extraction and tested in positive electrospray ionization with multiple reaction monitoring of HPLC-MS/MS.@*RESULTS@#The good linear relationship of cinobufagin and resibufogenin in liver tissue were 1-204 ng/g and 1-206 ng/g, respectively. The minimal detection threshold (S/N > or = 3) of this method was 0.3 ng/g for both cinobufagin and resibufogenin. The matrix effect was 96.5%-126.7%. The extraction recovery coefficient was 70.0%-82.3%. The precision of intra-day and inter-day was less than 10%.@*CONCLUSION@#This method is sensitive and reliable, and can be used in forensic toxicological analysis.
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Solvants
/
Bufanolide
/
Distribution tissulaire
/
Chromatographie en phase liquide à haute performance
/
Sensibilité et spécificité
/
Spectrométrie de masse en tandem
/
Toxicologie médicolégale
/
Foie
Limites du sujet:
Humains
langue:
Chinois
Texte intégral:
Journal of Forensic Medicine
Année:
2013
Type:
Article
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