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Hydrogen sulfide slow-release inhibitor as well as preparation method and application thereof

A slow-release agent and hydrogen sulfide technology, applied in the direction of botanical equipment and methods, applications, biocides, etc., can solve the problems of difficult concentration control and low utilization rate, and achieve low product cost, increase the duration of efficacy, and reduce the use of pesticides. The effect of drug frequency

Active Publication Date: 2015-07-22
SHANXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the invention is to overcome the existing H in the prior art 2 The concentration of S is not easy to control, and the utilization rate is not high, so it provides a kind of H with stable performance and controllable quality. 2 S sustained-release agent and preparation method thereof

Method used

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  • Hydrogen sulfide slow-release inhibitor as well as preparation method and application thereof
  • Hydrogen sulfide slow-release inhibitor as well as preparation method and application thereof
  • Hydrogen sulfide slow-release inhibitor as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1. Weigh 10g of sliced ​​paraffin (melting point 68°C) and place it in a small beaker, heat it in a water bath to 70-80°C to fully melt it; weigh 0.03g of NaHS and 0.1g of PEG-8000 in Add 1ml of absolute ethanol to two 2ml centrifuge tubes, heat the metal bath to 70-80°C to fully dissolve; combine the two solutions and vortex until fully mixed; add the mixture to the molten paraffin , select the power of 300W ultrasonic for 10 minutes to disperse evenly in the paraffin liquid. This process ensures that the temperature of the mixed liquid is greater than 68°C; absorb the paraffin liquid with a pipette gun, quickly inject it into cold water to obtain paraffin pellets, cool it, and remove it to room temperature dry to get H 2 S sustained release agent (see attached figure 1 ).

Embodiment 2

[0026] Embodiment 2. Weigh 10g of sliced ​​paraffin (melting point 68°C) and place it in a small beaker, heat it to 70-80°C in a water bath to fully melt it; weigh 0.05g of NaHS and 0.2g of PEG-8000 in the Add 1ml of absolute ethanol to two 2ml centrifuge tubes, heat the metal bath to 70-80°C to fully dissolve; combine the two solutions and vortex until fully mixed; add the mixture to the molten paraffin , select the power of 300W ultrasonic for 15 minutes to make it uniformly dispersed in the paraffin liquid, this process ensures that the temperature of the mixed liquid is greater than 68 °C; use a pipette gun to absorb the paraffin liquid, quickly inject it into cold water to obtain paraffin pellets, cool, and remove it to room temperature dry to get H 2 S sustained release agent (see attached figure 1 ).

[0027] Get the pellet slow-release preparation prepared by embodiment 1 and 2 and carry out release rate measurement:

[0028] Preparation of working curve: Accurately...

Embodiment 3

[0032] Embodiment 3. get 2 slow-release agent pellets that make in embodiment 1, place the Arabidopsis thaliana cultivation pot that grows for 2 weeks, keep the soil that it covers moist, compare with control after 10 days, individual plant obviously Larger, better growth and development (see attached image 3 ).

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Abstract

The invention discloses a hydrogen sulfide slow-release inhibitor as well as a preparation method and an application thereof. The method comprises the following steps: respectively dissolving a hydrogen sulfide donor such as sodium bisulfide (NaHS) and a coating agent into absolute ethyl alcohol, mixing and swirly mixing to obtain a mixed solution; adding the mixed solution into fused paraffin, ultrasonically mixing to obtain a paraffin solution containing the NaHS and the coating agent; dipping the paraffin solution into cold water to obtain a paraffin globule, cooling and drying to obtain the hydrogen sulfide slow-release inhibitor, wherein the mass ratio of the NaHS, the coating agent, the absolute ethyl alcohol to the paraffin is (0.5-5%): (1.5-15%): (5-20%): (60-93%). By adopting an ultrasonic-assisted dispersion technology, the mutual diffusion efficiency and effect of two solvents are improved. The concentration and the speed for releasing the H2S by the prepared slow-release inhibitor are stable and controllable and the slow-release inhibitor has an obvious promoting effect for the plant growth.

Description

Technical field: [0001] The invention relates to a slow-release agent, in particular to a hydrogen sulfide slow-release agent and its preparation method and application. Background technique: [0002] Hydrogen sulfide (H 2 S) As the third gas signal molecule, there have been more in-depth studies in animals, proving that the physiological concentration of H 2 S is involved in almost all life activities: protecting the heart, relaxing blood vessels, inhibiting the proliferation of vascular smooth muscle cells, inducing the apoptosis of vascular smooth muscle cells, promoting the proliferation of microvascular endothelial cells, improving heart failure, diabetes, liver cirrhosis, sepsis, asthma, etc. Adjustment function. In recent years, H 2 The research on S in plants has also made some progress, and it was found that it can promote seed germination, root morphogenesis, enhance photosynthesis, regulate flowering, delay aging, increase yield, etc. [0003] Currently about ...

Claims

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Application Information

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IPC IPC(8): A01N25/26A01N59/02A01P21/00
Inventor 金竹萍裴雁曦张丽萍马晓丽
Owner SHANXI UNIV
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