Blank

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In the laboratory world, a blank is a quality control (QC) sample made to contain negligible (or unmeasurable) quantities of the analyte(s) of interest. Detection of an analyte in a blank is an indication of contamination.[1]

References

  1. ↑ U.S. Environmental Protection Agency (6 July 2011). "SEDD Specification 5.2 Resources". http://www.epa.gov/fem/seddspec52.htm. Retrieved 20 May 2014. 
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