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What are the qualitative testing methods for urea?

General News Jan 1, 1970 0 views

Help, how do you test for urea qualitatively?

Recently I received a batch of soybean meal with a protein content of as much as over 45, and during microscopic examination I found some black things, fragile, with white crystals inside, but very few. Also, what should the true protein of soybean meal be?

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