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You will be pleasantly surprised to learn about how American scientists are from the Sacks Laboratory at Cornell University in Ithaca, NY, recently described a new approach to measuring molecular SO₂, called a “headspace gas detection tube” (HS-GDT that does not disturb the anthocyanin-SO₂ complexes and thus gives a more precise content of “real” molecular or of free SO₂ in wine.

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