News|Articles|May 4, 2026

PFAS The Hidden Threat Infographic

Author(s)Sartorius

PFAS, or “forever chemicals,” are persistent synthetic compounds that accumulate in the environment and human body, increasingly entering the food chain through water, soil, and packaging. This infographic highlights their sources, health concerns, and testing challenges, emphasizing the need for advanced analytical methods and PFAS-free lab conditions to ensure accurate food safety testing.


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Figure 2. Split injection used to measure triplicate test of MTBE, hexane, o-xylene, and 1-methylnaphthalene comparing different solvents (methanol, methylene chloride) and column insertion distances starting with 0.5 mm, 5.0 mm, 10.0 mm, 15 mm, and 20.0 mm. Methanol had the best performance at the 5.0 mm insertion distance and methylene chloride looked slightly better at the 0.5 mm. We would still recommend not going below the 5.0 mm manufacturer recommended insertion distance.
Revisiting insertion distance for methanol and methylene chloride in GC analysis and confirming that insertion depth strongly affects response and reproducibility.
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