Simple Analytical Method for the Determination of Paclitaxel (Taxol ® ) Levels in Human Plasma
2007
Caporossi, Lidia | De Rosa, Mariangela | Pera, Alessandra | Papaleo, Bruno
Paclitaxel has been widely used for tumor chemotherapy in recent years and it would be useful to assess occupational exposure to the drug, if only to confirm that the procedures and measures for prevention and protection applied in health care structures are effective against this kind of risk. This study is to establish a simple, robust analytical method for routine use in biological monitoring of health workers exposed to taxanes, and extendable to patients receiving these drugs. HPLC equipped with a diode array detector was used. The assay was validated. Intra- and inter-day accuracy and reproducibility were good. Recovery of paclitaxel spiked in drug-free plasma was higher than 87% with SPE using extract-clean normal phase cyanopropyl silica cartridges for plasma clean-up. The calibration curve was linear in the range 10-500 ng mL-¹. The method was applied to plasma samples of nurses occupationally exposed to paclitaxel. The experimental analytical method performed well, detecting paclitaxel in plasma at a concentrations down to 10 ng mL-¹. This straightforward method for analytical determination of paclitaxel in human plasma is rapid and can measure up to 36 plasma samples per day. It uses more economical equipment than other methods proposed in the literature and its validation parameters are highly satisfactory.
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