Why do casework-sample protocols for the QIAsymphony DNA Investigator Kit start with different lysate volumes (200 µl, 500 µl, or 1000 µl)?
FAQ ID -2035

To ensure performance with the QIAsymphony DNA Investigator Kit, lysis volumes have been optimized according to sample type. In general, large or absorbent samples require larger buffer volumes than small and non-absorbent samples.