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USP <197U> Proficiency Test for Identification by UV/Visible Spectroscopy


Proficiency Test for laboratories performing Assay by USP <197U> UV/Visible Spectroscopy read more



Catalog Number:
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PH-0523, PH-0123, PH-0922

Product Details

Product Details

Qualitative Proficiency Test (PT) for laboratories performing UV/Visible Spectroscopy by USP <197U> or equivalent. Participants report qualitative results for their samples. Samples provided as a three sample panel. One of three samples will be positive for target analyte. Participants are asked to identify the positive sample by UV/Vis ID test per USP monograph.


Positive Sample: Acetaminophen, powdered or granulated solid

Negative Samples: Caffeine, powdered or granulated solid

Sorbic Acid Reference Material Standard will be provided with the Proficiency Test Samples

USP PT Schedule

USP PT Schedule

Study Number Study Open Date Study Close Date
PH-0422 4/18/2022


Extended from 6/9/22

PH-0922 9/19/2022 11/18/2022
PH-0123 1/16/2023 3/17/2023
PH-0523 5/15/2023 6/14/2023