Enzymatic reaction catalyst adding apparatus

Abstract

The invention provides an enzymatic reaction catalyst adding apparatus. The apparatus includes a material collection hopper, a feeding tube and a material distribution hopper which are sequentially connected along a catalyst addition direction, the bottom of the material collection hopper is provided with a material inlet, the feeding tube is in hard connection with a vibrator, a vibration ball cavity is arranged in the vibrator, a gas inlet tube and a gas outlet tube connected with the inside of the vibration ball cavity are arranged, steel balls are arranged in the vibration ball cavity, and vibration generated due to the bumping of the steel balls in the vibration ball cavity makes a catalyst fall from the material collection hopper to the material distribution hopper along the feeding tube. The powdery catalyst sequentially goes through the material collection hopper, the feeding tube and the material distribution hopper and reaches a detection surface, and a single time detection demand of the catalyst is preplaced in the material collection hopper, and rapidly and uniformly falls to the detection surface under the action of the vibration force of the vibrator. Compressed air drives the steel balls to bump the vibration ball cavity in order to generate vibration, and the above vibration mode with a special structure has high vibration frequency and large and controllable vibration force, so the apparatus is suitable for the addition of powdery catalysts, especially catalysts with certain humidity and viscosity.

Description

Technical field [0001] The invention relates to a adding device, in particular to an enzymatic reaction catalyst adding device. Background technique [0002] Organophosphorus pesticides are widely used in agricultural production. They have high acute toxicity and cause greater harm to the environment and human health. Recently, the problem of excessive organic phosphorus pesticide residues has brought serious hidden dangers to the safety of fruits and vegetables. Control pesticides One of the most effective methods for residues is to strengthen pesticide residue testing. The most commonly used detection method is enzymatic detection. The detection principle is: the enzyme catalyst catalyzes the hydrolysis of the substrate. The hydrolysate reacts with the color reagent to produce yellow substances, while the organophosphorus pesticides inhibit the activity of the enzyme catalyst, thereby affecting The amount of hydrolysate, the concentration of organophosphorus pesticides can be ...

AI Technical Summary

Problems solved by technology

There are special requirements for the time and amount of enzyme catalyst added in the detection process. The titration method can be used for catalysts whose physical state is fluid, but this is not

Images