What method do we use to measure the urease activity of soybean meal?

The last part of this post was edited by yooboo at 13:43 on 2009-11-13. Do you need to test the urine enzyme of soybean meal in every car? -- We test every car, using a simple phenol red rapid method-- We test every car. A simple rapid phenol red method for the determination of jane published at 14:57 on 2009-11-13 can only give a rough estimate of how much there is no accurate measurement data, and we have used this method before. A simple phenol red method is used to roughly measure the incoming soybean meal, and the batches at the qualified edge can be calibrated by titration-PH (quantitative) method, which is the revised method of the national standard. The previous national standard is the PH increment method.