Drops Counting of Capillary Burette Micro Titration for Fast Determination of Potassium Iodate in Edible Salt

Drops counting of capillary burette micro titration with polyethylene burette to carry on titration analysis, the apparatus is simple, small, cheap, easy to carry, and less reagent consumed, while the determination is fast and correct. To determine potassium iodate in edible salt, the specification of home-made capillary burette is 0.01～0.02 ml/drop, and the dosage of standardization solution is controlled in 60～90 drop, with relative expand uncertainty about 1.3%, reclaim rates 98.4%～101.5%, and RSD 0.77%～1.6%, in accordance with stipulation of GB5009.42-2003. The methods used to assay edible salt production and daily sanitation surveillance work, can report rapidly the analysis results, worthy popularization.