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PharmacyPharmaceutical AnalysisPharmaceuticsAnalytical ChemistryMass Spectrometric AnalysisAnalytical ChromatographyExtraction TechniquesInstrumental AnalysisMass SpectrometryExtractionsIon-pair ReagentsLiquid Chromatography-mass SpectrometryPharmaceutical ExtractionQuantitative DeterminationRecovery Of Pharmaceutical CompoundsUrine Drug Screening
11
Technometrics · 2005 · 18.1K citations
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Lee J. Bain, N. H. Draper, H. Smith · Technometrics · 1967 · 3.3K citations
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Rex B. Conn, Richard B. Davis · Nature · 1959 · 77 citations