Details

Autor(en) / Beteiligte

• Gao, Weihua
• Kishida, Tomoyuki
• Kimura, Keisuke
• Kageyama, Michiharu
• Sumi, Masaki
• Yoshikawa, Yukako
• Shibata, Nobuhito
• Takada, Kanji

Titel

Sensitive and simultaneous determination of HIV protease inhibitors in rat biological samples by liquid chromatography-mass spectrometry

Ist Teil von

• Biomedical chromatography, 2002-06, Vol.16 (4), p.267-273

Ort / Verlag

Chichester, UK: John Wiley & Sons, Ltd

Erscheinungsjahr

2002

Quelle

MEDLINE

Beschreibungen/Notizen

• A sensitive and simultaneous liquid chromatographic–mass spectrometric (LC/MS) method for the determination of current four HIV protease inhibitors (PIs), indinavir (IDV), saquinavir (SQV), nelfinavir (NFV) and amprenavir (APV) in rat plasma and liver dialysate by a microdialysis method was described. An isocratic LC/MS method in combination with atmospheric pressure chemical ionization was developed for the determination of these four PIs in biological samples in the same run. The analytes including an internal standard were extracted from 100 µL of plasma or 150 µL of liver dialysate samples by salting‐out with 100 µL of ice‐cold 2 M K3PO4 followed by ether extraction. The separation of analytes was carried out on a reversed‐phase semi‐micro column using 50% of acetonitrile containing 1% acetic acid as mobile phase at a flow rate of 0.2mL/min−1. The separation was completed within 5 min. Precision, recovery and limits of detection indicated that the method was suitable for the quantitative determination of these PIs in rat plasma or liver dialysate. This simple, sensitive and highly specific LC/MS method is suitable for pharmacokinetic studies and therapeutic drug monitoring in AIDS patients who receive double protease therapy. Copyright © 2002 John Wiley & Sons, Ltd.