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The free concentration of protons, h, at each titration point was calculated from the measured pH value using Equation (3): (3) is the activity coefficient for protons and was calculated for each temperature and ionic strength using the Davies equation [10]

Tap water often contains impurities like minerals, chlorine, and dissolved organic matter

Metabolism of 2-chloro-4-ethylamino-6-isopropylamino-s-triazine (atrazine) in excised sorghum leaf sections

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Gastroenterology 140, 618626