Special indicator for quality of artificial liquid nutrition feed for natural enemy insects
An indicator and nutritional agent technology, applied in the field of quality indicators, can solve the problems of not reflecting the actual situation well, being easily diluted and covered, self-hydrolysis color development, etc., to achieve product quality, not easy to spread, and stable properties Effect
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Problems solved by technology
 A preparation method of a quality indicator for a liquid nutrient comprises dissolving triphenyltetrazolium chloride in a solvent, then adding polyvinylpyrrolidone, fully mixing and drying.
 In some examples of the preparation method, the mass ratio of triphenyltetrazolium chloride to polyvinylpyrrolidone is (1 to 3): (1 to 50).
 In some examples of the preparation method, the mass ratio of triphenyltetrazolium chloride to polyvinylpyrrolidone is (1 to 3): (1 to 12).
 In some examples of preparation methods, the solvent is absolute ethanol.
 The third aspect of the present invention provides:
 A liquid nutrient containing the quality indicator of the first aspect of the present invention; or the quality indicator prepared according to the preparation method of the second aspect of the present invention.
 In some examples of liquid nutrients, the added mass of the quality indicator is 0.001% to 0.1%. The specific addition amount can ...
 Example 1:
 Add 0.005%, 0.01%, 0.02%, 0.03% TTC respectively.
 Example 2:
 The quality indicator is added to make the final liquid feed contain 0.1% polyvinylpyrrolidone and 0.005%, 0.01%, 0.02%, and 0.03% TTC.
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