Titration
In a 100 or 150 mL beaker are added 50 ml sample and 2 ml of the Glyoxal solution. After 5 minutes 5 ml of the H2SO4 25 % are added. The mixture is directly titrated with the Iodine solution to an A endpoint. ChemTron Titroline 6000自動電位滴定儀 優萊博 TitroLine 7500KF容量法卡式水份滴定儀 優萊博 TitroLine 6000自動電位滴定儀
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