MSACL 2017 US Abstract

Method Development Matrix Effects Case Study

Autumn Breaud (Presenter)
Johns Hopkins University

Authorship: Autumn Breaud, William Clarke, PhD
Johns Hopkins University

Short Abstract

When developing HPLC-MS/MS methods for therapeutic drug monitoring or toxicology, it is important to work with a sample matrix which closely matches the matrix of unknown samples. Generally, this involves the use of pooled materials for which no demographic information is available. In this session, we discuss the discovery of age-specific matrix interference during the development of an assay for quantification of chlorhexidine, an antiseptic agent used for washing neonatal patients.

Long Abstract

When developing HPLC-MS/MS methods for therapeutic drug monitoring or toxicology, it is important to work with a sample matrix which closely matches the matrix of unknown samples. Generally, this involves the use of pooled materials for which no demographic information is available. In this session, we discuss the discovery of age-specific matrix interference during the development of an assay for quantification of chlorhexidine, an antiseptic agent used for washing neonatal patients. We will discuss 1) the impact of using non-age-matched matrix to calibrate this assay, and 2) a technique for managing the requirement for age-matched standards, and 3) considerations for development of other HPLC-MS/MS assays.


References & Acknowledgements:


Financial Disclosure

DescriptionY/NSource
GrantsyesThermo Scientific
Salaryno
Board Memberno
Stockno
Expensesno

IP Royalty: no

Planning to mention or discuss specific products or technology of the company(ies) listed above:

yes