Values > ULOQ, dilution [Bioanalytics]

posted by nvs – India, 2009-02-25 06:04 (6329 d 15:17 ago) – Posting: # 3287
Views: 3,483

Dear all,
We got some ULOQ concentrations during the study sample analysis. We repeated the samples under the code of Upper limit of quantification. In that batch (repeated batch) we analyzed other repeats like IS variations etc... & we put some DQCs (dilution integrity quality control samples).
In that batch everything was ok, and batch was accepted.
But the DQC samples were not meeting the specification.
But the repeated concentrations (ULOQ repeats) were with in the calibration range.
So again ULOQ samples were taken for repeat.
So which code has to given for that samples.
During the second repetition they are not ULOQ's. We repeated because of failure of DQC's.

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Edit: Category & subject line changed. [Helmut]

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