The invention relates to a
colloidal gold test strip for testing
melamine content. The test strip mainly comprises a supporting plate, a sampling zone, a colloidal mark redissolve zone, a color development zone, a water absorbing pad and the like. By adopting the theory of competition method,
melamine in a sample is competed with gold mark
melamine envelope
antigen MEL-OVA, therefore the melamine in the sample is combined with anti-melamine
monoclonal antibody on the test strip so as to be developed, and the corresponding relation of the melamine content in the sample and the color development quantity of the
test strips is built, therefore the melamine content can be judged according to the color development quantity of the strips in the color development zone. The
colloidal gold test strip has the advantages of high specificity, high sensitivity, fast testing speed, simple operation, convenient portability and the like, and can quick and sensitively judge whether the samples, such as milk, feed,
animal product, blood and
urine, contains melamine, or whether the melamine content exceeds the standard, thus presenting evaluation and judgment to food security and
human body health. The
colloidal gold test strip can be suitable to the on-site quick screening of food, feed and the like, and can also be applied to the self-
check in the daily life at home and autologous melamine content testing of human.