Copper ion semi-quantitative detection test paper based on quinazarin

The utility model discloses a copper ion semi-quantitative detection test paper based on quinazarin. The protective film comprises a waterproof bottom layer (1), a first protective sheet (2) is arranged on one side of the surface of the waterproof bottom layer (1), a second protective sheet (5) is further arranged above the waterproof bottom layer (1), and a protective cavity (6) is formed by thefirst protective sheet (2) and the second protective sheet (5). A detection layer (7) is arranged above the waterproof bottom layer (1); the detection layer (7) is arranged in the protection cavity (6); and the detection layer (7) comprises a quinazarin developing layer (8), an acetone adhesion layer (9), a nano cellulose dispersion layer (10) and a paper base layer (11) from top to bottom. The copper ion detector can accurately detect whether copper ions exist in the environment or not, is simple to operate and low in cost, and is suitable for non-professional common people to use; in addition, the storage box furthe