Determination of iron, zinc and manganese
Published: 2024-11-22 Author: mysheen
Last Updated: 2024/11/22, Determination of iron, zinc and manganese
Have you determined iron, copper, zinc and manganese? Let's exchange and study. I have a few questions for your advice! 1 Iron: how to determine the end point? The national standard says purple, but when I titrate it, it only shows for a moment, and then shake it up a little bit, and then it's not purple, it seems to be deeper than green, and it's not like green, so I can't say any color. 2 Manganese: the details are difficult to control. Can not master the national standard of 220-240 degrees, each time the result is low. 3 Zinc: what do you need to pay attention to? The result page of my work is low. I don't know why.
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Planting time
Method of planting
Carrot planting
Rice Price
Today-Rice Price
meal price
market-cotton price
Pig price
Corn price
Carrot planting
mysheen.com
Pig price
Corn price
meal price
Planting time
Method of planting
MySheen website
market-cotton price
Rice Price
Today-Rice Price
Carrot planting
mysheen.com
Pig price
Corn price
meal price
Method of planting
MySheen website
market-cotton price
Rice Price
Today-Rice Price
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