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Gas chromatography flame ionization detector spectrum of (A) USP ethanol, (B) ABHR formulated with USP-compliant ethanol and, (C) ABHR formulated with technical-grade ethanol [22]. The shaded area represents other possible alcohol contaminants or additives (e.g. essential oils, fragrances, etc.) that were blended during production.
*Acetonitrile was used as the syringe rinsate.
