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USP <761> Proficiency Test for Nuclear Magnetic Resonance (NMR)


PHPT 034 is suitable for USP General Chapter <761> Nuclear Magnetic Resonance (NMR) Quantitative Proficiency Test (PT) for laboratories performing Nuclear Magnetic Resonance by USP <761> or equivalent. Participants report quantitative results for their sample(s). Sample material under test is provided in a glass vial containing 100-250 mg of material.  Participants are asked to determine the presence and atomic position (Assay) of target analyte per the USP monograph or equivalent. Target Analyte: Ascorbic or Citric Acid read more


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