33 Food test 4 | 合法醫療器材資訊網

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In the presence of alkaline, when Biuret is reacted with dilute copper sulphate, a purple coloured substance is formed. The reason behind this colour is the ... Read More

The biuret test uses an alkaline mixture, or reagent, composed of potassium hydroxide and copper sulfate. The normal color of biuret reagent is blue. The ... Read More

2021年7月12日 — A Biuret test is a chemical test used to determine the presence of a peptide bond in a substance. It is based on the biuret reaction in which a ... Read More

Peptides with the correct length of at least 3 amino acids are necessary for a significant, measurable colour shift with these reagents. Read More

The Biuret Test is done to show the presence of peptide bonds, which are the basis for the formation of proteins. These bonds will make the blue Biuret reagent ... Read More

2021年3月24日 — Biuret reagent is an alkaline solution of 1% CuSO4, copper sulfate. The violet color is a positive test for the presence of protein, and the ... Read More

2021年2月16日 — However, it changes its color to violet if peptide bonds are present. Under normal condition, the color of the biuret reagent is blue. The ... Read More