The compound 1,4-dioxane presents some difficult analysis problems. While commonly considered a solvent, the typical volatile organic solvent analysis methods rate this compound as a “poor performer”. However, using an alternative semivolatile organic analysis technique, reliable and highly sensitive results can be routinely obtained.
Eurofins Spectrum Analytical participated in an EPA-sponsored multi laboratory study comparing the VOC to the SVOC analysis methods for 1,4-dioxane. This demonstrated the superiority of the SVOC technique over the VOC technique, both in terms of sensitivity and reliability of the data produced.
Eurofins Spectrum Analytical routinely analyzes for 1,4-dioxane at low sub-ppb levels. The calibration limit/reporting limit for 1,4-dioxane by the most common Eurofins Spectrum Analytical method 8270-SIM is 0.1 ug/L (ppb). This test uses a deuterated analog of 1,4-dioxane as a surrogate standard. This surrogate has hydrogen atoms on the dioxane molecule replaced with deuterium, providing the most realistic and direct assurance of analytical quality.
Reporting limits to 1.0 ug/L can also be achieved via SW846 8260 SIM for clients that do not require sub-ppb levels. This method provides cost advantages for project planning when regulatory limits allow.