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A rapid, sensitive and specific method was developed and validated using liquid chromatography–tandem mass spectrometry (LC/MS/MS) for determination of gefitinib in human plasma and mouse plasma and tissue. Sample preparation involved a single protein precipitation step by the addition of 0.1mL of plasma or a 200mg/mL tissue homogenate diluted 1/10 in human plasma with 0.3mL acetonitrile. Separation...
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