METHODS OF STABILIZING TOTAL ORGANIC CARBON (TOC) LEVELS IN NON-ACIDIFIED STANDARDS FOR TOC ANALYZERS AT ROOM TEMPERATURE

摘要

Methods for stabilizing reference standards used in total organic carbon (TOC) analysis of water and pharmaceutical samples are disclosed. The methods include adding a preservative to TOC reference standards. The preservative is selected from the group consisting of copper (II) sulfate and hydrogen sulfite. Compositions of the stabilized reference standards are also disclosed.