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Primesep C separates acetaminophen (paracetamol), phenylephrine, and diphenhydramine-- common over-the-counter cold and flu medication ingredients such as Tylenol products—by either an acetonitrile or phosphoric acid gradient. The HPLC separation uses a mobile phase of water, acetonitrile (MeCN, ACN), and phosphoric acid with ultraviolet (UV) detection at 210 nm.
Acetaminophen (Paracetamol) Phenylephrine
UV Detection |
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