Many scientists are concerned about the virtual non-existence of low-level conductivity standards. Where such standards have been reported, independent studies have shown them to be unstable, nonmatrix compatible or not reaching the low conductivity levels required for modern measurement. This paper presents stability data on an aqueous 5μS/cm conductivity standard, which has never previously been reported, and introduces a stable, aqueous 1.3μS/cm conductivity standard that is new to science. Such standards address the concerns previously raised and provide analysts with improved confidence in their low-level analytical measurements.

Contents of the Paper

  • Introduction
  • Experimental
  • Test Results
  • Discussion
  • Conclusion
  • References


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