Medicine and Health Sciences Commons^™

Quantification Of Lansoprazole In Oral Suspension By Ultra-High-Performance Liquid Chromatography Hybrid Ion-Trap Time-Of-Flight Mass Spectrometry, Stacy D. Brown, Justin D. Connor, Nicholas C. Smallwood, Ralph A. Lugo

ETSU Faculty Works

An LC-MS/MS method was developed and validated to be used as a stability indicating assay for the study of a 3 mg/mL lansoprazole oral suspension. The method utilizes a UPLC (ultra-performance liquid chromatography) column and unique mass spectrometric detection (ion-trap time-of-flight (IT-TOF)) to achieve a sensitive (LOD 2 ng/mL), accurate, and reproducible quantification of lansoprazole. This method reports an intraday and interday coefficient of variation of 2.98 ± 2.17% ( for each concentration for each day) and 3.07 ± 0.89% ( for each concentration), respectively. Calibration curves (5–25 μg/mL) were found to be linear with an value ranging from …