Gas—liquid chromatographic evaluation of bencyclane in biological samples for pharmacokinetic and bioavailability investigations: comparison of two analytical methods

Add time:07/21/2019    Source:sciencedirect.com

Analytical conditions that allow bencyclane, a vasodilator, to be evaluated in biological samples for pharmacokinetic and bioavailability investigations are reported. Two gas chromatographic methods were developed, one employing a flame-ionization detector, reaching a sensitivity of 0.5–1 μg/ml, and the other employing a thermionic specific detector and reaching a sensitivity of 10 ng/ml. The extraction recovery, reproducibility and specificity were all satisfactory with both methods. The former method is suitable for chemical quality controls and the latter has a sufficient sensitivity and reproducibility for determination of the drug in biological samples as required in pharmacokinetic investigations.

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