Xanthoproteic Test Definition Xanthoproteic test is a biochemical test for the detection of amino acids containing phenolic or indolic groups like phenylalanine, tyrosine, and tryptophan (aromatic amino acids). The test is named Xanthoproteic test due to the formation of a … Read more
Salt Saturation Test Definition Salt Saturation Test is a test for the precipitation of proteins and their differentiation from other proteins by using the salting-out technique. Salting out is the process of precipitation of proteins by increasing the concentration of … Read more
Sakaguchi Test Definition Sakaguchi test is a biochemical test consisting of colorimetric reaction for the detection and quantification of guanidinium groups, used as a qualitative test for arginine that is either free or in protein. The test was discovered by … Read more
Pauly’s Test Definition Pauly’s test is a biochemical test for the detection of tyrosine and histidine where the reagent couples with amines, phenols, and imidazole groups. The test was discovered by and is named after the German Chemist Hermann Pauly. … Read more
Lead Sulfide Test Definition Lead sulfide test (or Lead acetate test) is a biochemical test for the detection of amino acids like cysteine and cystine. The test is a specific test for the detection of amino acids containing sulfur, S-S … Read more
Hopkin’s Cole Test Definition Hopkin’s Cole test is a specific test used for the detection of indole ring and thus, tryptophan in proteins. The test is also termed as ‘glyoxylic acid test’ as the reagent contains glyoxylic acid. The test … Read more
Heller’s Test Definition Heller’s test is a biochemical test performed to detect proteins in a sample by the denaturation of those proteins by the addition of strong acids. Heller’s test usually uses concentrated nitric acid for the denaturation of proteins. … Read more
Heat coagulation test of proteins definition Heat coagulation test of protein is a biochemical test performed to determine the presence of proteins like albumin and globulin in protein. Coagulation of proteins as a response to heat is a common phenomenon. … Read more