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Waters

Will peak purity fail if the ACQUITY PDA is saturated above 2 AU (absorbance units)? - WKB15682

Article number: 15682

ENVIRONMENT

  • ACQUITY UPLC PDA Detector

ANSWER

Yes

ADDITIONAL INFORMATION

See the Empower PDA Software Getting Started Guide, page 50.

"Ensure that the absorbance of all peaks in the chromatogram is less than 1 AU (absorbance unit). This criterion is necessary when calculating purity results in order for these results to be valid. If the absorbance is less than 1 AU, proceed with the next step. If the absorbance of any peak is greater than 1 AU, dilute the sample appropriately and acquire it again.

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