Metasilicic acid has a good function of softening blood vessels in the human body, and can promote the growth and development of bones and teeth. Metasilicic acid can also promote plant growth and development, improve plant mineral nutrition, enhance crop resistance to diseases, drought, and lodging, and increase crop yield. To eliminate the tedious operation of preparing reagents and testing processes for users, and improve detection efficiency, based on the GB/T 12149-2007 standard, this product has been launchedLow range silicon reagent.

Low range silicon reagentBased on the national standard for silica molybdenum blue method (GB/T 12149-2007): Under acidic conditions, silica reacts with ammonium molybdate to form silica molybdenum yellow heteropolyacid, which is then reduced to silica molybdenum blue by a reducing agent. The color system has a certain concentration range, and the depth of its blue color is proportional to the concentration of silica.

measuring range

Testing precautions

1. For more accurate testing, the blank value of each new batch of reagents should be measured. The determination of reagent blank is also carried out according to the testing steps, except that the sample is replaced with pure water for testing. Subtract the blank value of the reagent from the final test result;

2. If the content is higher than the reagent range, the measured value can only be used to estimate the dilution factor and cannot be used as a test result. After diluting the sample, it should be re digested before testing;

3. Phosphate less than 20mg/L does not interfere with the determination;

4. The higher the temperature, the faster the color development. 10 ℃: 10 minutes; 20 ℃: 5 minutes; 30 ℃: 3 minutes; 40 ℃: 1 minute;

5. Store in a dry, cool, and out of reach of children. Do not store together with food, medicine, etc., and do not put into fire;