Archive
Tag: Food-Contact Materials
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Total fluorine: a pragmatic PFAS screen that cannot tell you what it found
Total fluorine measures every fluorine atom in a sample, organic or inorganic. It is fast, cheap and captures unknown PFAS, but minerals, fillers and groundwater all contain fluoride, and the…
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What PFAS actually are: one definition, thousands of substances
PFAS is not a substance or a class of similar substances but a structural definition covering roughly 10,000 chemicals. What the carbon–fluorine bond does, why the families behave differently, and…