Abstract
Background: Trimethoprim-sulfamethoxazole (TMP-SMX) is an antimicrobial drug combination commonly prescribed in children and adults. The study objectives were to validate and apply an HPLC-MS/MS method to quantify TMP-SMX in dried plasma spots (DPS) and dried urine spots (DUS), and perform a comparability analysis with liquid matrices. Results: For TMP the validated range was 100-50,000 ng/ml for DPS and 500-250,000 ng/ml for DUS; for SMX, the validated range was 1000-500,000 ng/ml for both DPS and DUS. Good agreement was noted between DPS/DUS and liquid plasma and urine samples for TMP, while only modest agreement was observed for SMX in both matrices. Conclusion: A precise, accurate and reproducible method was developed to quantify TMP-SMX in DPS and DUS samples.
Original language | English (US) |
---|---|
Pages (from-to) | 1137-1149 |
Number of pages | 13 |
Journal | Bioanalysis |
Volume | 7 |
Issue number | 9 |
DOIs | |
State | Published - May 1 2015 |
All Science Journal Classification (ASJC) codes
- Analytical Chemistry
- General Pharmacology, Toxicology and Pharmaceutics
- Clinical Biochemistry
- Medical Laboratory Technology