The principle and steps of the new Kjeldahl analyzer

Kjeldahl is an instrument that calculates the protein content by measuring the nitrogen content of the sample based on the principle that the nitrogen content of the protein is constant. Because the method for calculating the protein content is called Kjeldahl method, it is called Kjeldahl.......

Walnut, walnut, TV cabinet offer

[ Chinese wardrobe network ] Walnut is alright? Most of the walnut furniture currently on the market is made of walnut in the main frame of the furniture, and the other parts are made of plates, so consumers must ask when buying walnut furnitur.......