Food Testing and Agriculture
Fast, sensitive, and reproducible analysis of pesticides in food and drink using GC/MS remains a great challenge for food testing laboratories. The susceptibility of highly sensitive compounds to active sites in the instrument flow path can result in poor peak shape, poor reproducibility, and significant loss of sensitivity. Agilent J&W Ultimate Plus deactivated fused silica tubing has great potential in contributing to an inert flow path for reliable analysis of pesticides at trace levels. This application note provides a detailed evaluation of Ultimate Plus versus another supplier's tubing, promoted as having superior performance. Tubing was used as a GC restrictor for MS in the analysis of a pesticide checkout mixture. Ultimate Plus tubing delivered good peak shapes and significant response improvements for most analytes, especially challenging compounds susceptible to active sites on the surface of deactivated fused silica tubing.
Publication number: 5991-5404EN.pdf
Publication Date: December 5, 2014