Internal standards in regulated bioanalysis: putting in place a decision-making process during method development.
Bioanalysis
; 11(18): 1701-1713, 2019 Sep.
Article
em En
| MEDLINE
| ID: mdl-31646889
ABSTRACT
It is common practice to utilize an internal standard (IS) to minimize variance in bioanalytical assays employing liquid chromatography coupled to mass spectrometry. For assays to be deployed in regulated drug development studies, ensuring the IS will compensate for differences in recovery, liquid handling and ionization efficiency should be determined early in the method development process. In this perspective article, we outline key considerations when selecting an IS and propose experiments to perform within the method development phase to demonstrate suitability of the IS within the assay prior to validation. Finally, a series of case studies will be presented, which illustrate analytical challenges related to internal standardization that we have observed in our laboratory.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Técnicas de Química Analítica
/
Tomada de Decisões
Tipo de estudo:
Prognostic_studies
Limite:
Humans
Idioma:
En
Ano de publicação:
2019
Tipo de documento:
Article