高分辨GCMS分析垃圾中的二噁英物质

Introduction:
Over the past 30 years, dioxin TEQ levels and body burden levels in the general population have been on the decline and continue to decrease. More than 90% of human exposure to dioxins and dioxin-like substances is through food. With increasingly lower dioxin levels in food, feed, and tissues, more demanding limits of detection, selectivity, sensitivity and QC checks are required to confirm their presence at these ever decreasing levels.

Instrument:

DFS High Resolution GC/MS with two TRACE GC Ultras™

Conclusions:
With the DFS High Resolution GC/MS system, food, environmental, and biological samples can be analyzed for dioxins and furans in the low femtogram range. Even difficult sample types with heavy matrix effects can be successfully analyzed. The reliability, sensitivity and long-term robustness of the DFS are demonstrated with a series of repeated injections of a “dirty” matrix blood sample. Using HRGC/HRMS, the DFS system delivers confirmatory analyses that can withstand any legal interrogation.