The invention discloses a test paper plate for detecting
solanine in potatoes. The test paper plate comprises a base plate, a lining plate and a protective film, a
colloidal gold marking pad, a water-absorption pad, a sample pad and a
cellulose acetate membrane are adhered to the lining plate in sequence, the overlapping length of every adjacent part of the
colloidal gold marking pad, the water-absorption pad, the sample pad and the
cellulose acetate membrane is 0.5-0.8 mm, the
colloidal gold marking pad is provided with a
monoclonal antibody which is coupled with colloidal gold, the
cellulose acetate membrane is provided with a detection line, a
quality control line and a false positive marked line, and the sample pad is provided with a filter
membrane layer. The test paper plate has the advantages of being high in sensitivity, strong in specificity, low in cost, simple in operation, short in detection time, applicable to units of various kinds, easy to store, and long in shelf date; meanwhile, the operation is simple, fast and safe, a large part of raw materials necessary to the reaction are integrated into a PVC backlining, after a sample is subjected to dripping, an
antigen-
antibody reaction is quickly conduced on a
solid-state membrane, and thus the sample detection time is sharply shortened; in addition, the sample needs no special treatment, and the test paper plate is low in cost, easy to popularize, low in production cost, low in investment and quick in effect.