USP <621> Chromatography HPLC Proficiency Test for Solid Materials

Qualitative and Quantitative Proficiency Test (PT) for laboratories performing HPLC Assay of solid materials by USP <621> or equivalent. Participants may report qualitative and/or quantitative results for their powder sample(s). 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 HPLC peak retention time match (ID Test). Determine the concentration (Assay) in percentage (%) of target analyte in the solid sample per the USP monograph or equivalent.

See Proficiency Testing Schedules here: PT SCHEDULES
 

Positive Sample: Maltitol, powdered or granulated solid

Negative Samples: Sorbitol, powdered or granulated solid

Maltitol Reference Material Standard will be provided with the Proficiency Test Samples