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EnglishIn this paper, a fast method for the detection of irinotecan (CPT-11) in plasma samples was investigated. CPT-11 is widely used in a number of chemotherapeutic treatments of several solid tumors. The method is based on the combination of a solid phase extraction and an electrochemical detection step. The extraction of CPT-11 from plasma was performed using solid phase extraction (SPE) columns and acetonitrile as eluent. The procedure included also a cleaning step to eliminate interference due to plasma endogenous compounds and the co-therapeutics 5-fluoroacil (5-FU) and folinic acid (FA). The latter are administered together with CPT-11 in the FOLFIRI regimen. The detection of CPT-11 was performed by differential pulse voltammetry at a glassy carbon electrode (GCE) in basified acetonitrile media. Under these conditions, a well-defined peak due to the oxidation of the tertiary ammine end of CPT-11, also free from interference due to main metabolites, was obtained. Calibration plots showed a good linear response with limit of detection and quantification of 1.10 × 10-7 and 3.74 × 10-7 M, respectively. The suitability of the method proposed here for clinical applications was verified by determining the concentration of CPT-11 in plasma samples of an oncological patient, collected after 30 and 180 min from the infusion of the drug. Graphical abstract.
| Autori: | Daniele, Salvatore (Corresponding) |
| Data di pubblicazione: | 2020 |
| Titolo: | A fast method for the detection of irinotecan in plasma samples by combining solid phase extraction and differential pulse voltammetry |
| Rivista: | ANALYTICAL AND BIOANALYTICAL CHEMISTRY |
| Digital Object Identifier (DOI): | http://dx.doi.org/10.1007/s00216-020-02386-1 |
| Volume: | 412 |
| Appare nelle tipologie: | 2.1 Articolo su rivista |
File in questo prodotto:
| File | Descrizione | Tipologia | Licenza | |
|---|---|---|---|---|
| Main text R1.pdf | Documento in Post-print | Accesso chiuso-personale | Riservato | |
| Irinotecan Supplementarypdf.pdf | Materiale supplementare | Altro materiale relativo al prodotto (file audio, video, ecc.) | Accesso chiuso-personale | Riservato |
http://hdl.handle.net/10278/3723272
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