Determination of total manganese in manganese ore by automatic potentiometric titrator

After the sample is heated and dissolved in hydrochloric acid, phosphoric acid, nitric acid, and perchloric acid, ammonium ferrous sulfate is used as the standard solution as the titration solution, and the total manganese content is determined by an automatic potentiometric titrator. After testing 5 certified standard samples, the difference between the average value of the total manganese content and the certified value is between 0.015% and 0.145%, the standard deviation is 0.074%, and the t-test value is 0.366. The total amount of manganese was measured and the method was compared. The allowable difference was in accordance with the standard GB / T 1506-2002. This method has high sensitivity and accuracy, and can be used for daily detection of large quantities of manganese ore.

0° Dry Soft Dry Nano Disinfecting & Care Tissue

Principle: Nano drug capsules are contained in the tissue paper. The natural water content in the tissue paper (the paper absorbs water from the air) is used to relieve the release of nano drug capsules, and targeted sterilization is carried out for bacteria, with the sterilization rate over 90%.

Nano Disinfecting Tissue

Disinfectant Tissue,Disinfecting Dry Tissue,Nano Disinfecting Tissue,Disposable Disinfectant Tissue

Yafeng Paper Industry Co., Ltd , https://www.tenoutissue.com