Figure 3:
The mass spectra of (a)amantadine 2380.0 ng mL
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(b)memantine, 1190.0 ng mL
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, (C) mixture of memantine, 119.0 ng mL
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(analyte) and amantadine, 2380.0 ng mL
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(IS) in 50% aqueous solution of acetonitrile containing 0.1% formic acid.