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Title Development and Validation of a High Sensitivity On-Line Extraction LC-MS/MS Method for the Determination of Exemestane and its Metabolite 17β-Hydroxyexemestane in Human Plasma
Summary Exemestane is an orally active irreversible steroidal aromatiase inhibitor used for the therapy of metastatic postmenopausal breast cancer.The objective of this work was to develop and validate a highly sensitive on-line extraction LC-MS/MS method for the determination of exemestane (EXE) and 17β-hydroxy- exemestane (17β EXE) in human plasma.. A high sensitive, accurate and robust method for the determination of exemestane and its metabolite 17β-OH exemestane was developed. The study also demonstrates how the use of selective analyte isolation techniques, chromatography and MS/MS detection make it possible to analyse steroidal compounds susceptible to isobaric interferences at trace levels.
Category 2. Symbiosis Application Notes

These are application notes that have been made in our application lab. They were based on customer demo's and customer method development requests. They include sorbent screening, a calibration curve and are optimized for carry over. They are not always (completely) validated
 
Matrix Plasma, Human Plasma
Market Clinical, CRO
Technique online SPE
Cartridge Hysphere-C8 (10 x 2 mm)
Detection AB SCIEX API 5000
Compounds exemestane (EXE) and 17β-hydroxy- exemestane (17β EXE)
Compound Group exemestane (EXE) and 17β-hydroxy- exemestane (17β EXE)
Sample_volume 100µL
 
Contact Mohammed Abrar, John Allanson, David Browne, Jeremy Cook, Pratap Davuluri & Jennifer Dyer
Account Unilabs York Bioanalytical Solutions, Cedar House, Northminster Business Park, Upper Poppleton, York YO26 6QR, UK
Published Poster ASMS
Date 04.08.2015
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