- P-ISSN 2233-4203
- E-ISSN 2093-8950
Ibuprofen is one of the most popular analgesic and antipyretic drugs. An isotope dilution mass spectrometry method based on LC/MS was developed as a candidate reference method for the accurate determination of ibuprofen in pharmaceutical tablets. Isotope labelled ibuprofen, ibuprofen-d 3 , was added as an internal standard into sample extracts. Ibuprofen and ibupro-fen-d 3 , was analysed by LC/MS in a selected ion monitoring (SIM) mode to detect ions at m/z 205 and 208, respectively. The repeatability and reproducibility of the developed ID-LC/MS method were tested for the validation and assessment of metrolog-ical quality of the method.
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