Preparation method and use of single, compound arsenic with bio-effect
A biological and elemental arsenic technology, applied in botanical equipment and methods, medical preparations containing active ingredients, applications, etc., can solve the problems of low bioavailability, large toxic and side effects, and large particles, and achieve good stability. , the use of a wide range, the effect of small particle size
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0019] 1) Diarsenic trioxide (As 2 o 3 ) dissolved in 0.1moL / L aqueous sodium hydroxide solution, As 2 o 3 The solid-to-liquid ratio with sodium hydroxide solution is 1g: 1L;
[0020] 2) Set the weight to As 2 o 3 10 times of sodium carboxymethyl cellulose, prepared into an aqueous solution of sodium carboxymethyl cellulose with a weight volume concentration of 0.1g: 1L, slowly adding the As in step 1) 2 o 3 In the aqueous solution, under stirring, slowly add the molar ratio of As 2 o 3 3 times vitamin C, adjust the pH of the reaction system to 4, and react at room temperature for 1 hour;
[0021] 3) The reaction solution in step 2) is an elemental arsenic sol with biological effects.
Embodiment 2
[0023] 1) Arsenic trisulfide (As 2 S 3 ) is dissolved in 10moL / L sodium hydroxide aqueous solution, the solid-liquid ratio of arsenide and sodium hydroxide solution is 100g: 1L;
[0024] 2) Set the weight to As 2 S 3 1000 times of polyvinylpyrrolidone, prepared into an aqueous solution of polyvinylpyrrolidone with a weight volume concentration of 100g: 1L, slowly adding the As in step 1) 2 S 3 In the aqueous solution, under stirring, slowly add the molar ratio of As 2 S 3 10 times of potassium borohydride, adjust the pH of the reaction system to 9, and react at room temperature for 10 hours;
[0025] 3) Centrifuge the reaction solution obtained in step 2) under a nitrogen atmosphere, wash it with water, and then dehydrate it by centrifugation. The obtained filter cake is vacuum-dried at a temperature below 80° C. and crushed to 400 meshes to obtain elemental arsenic with biological effects. .
Embodiment 3
[0027] 1) Diarsenic disulfide (As 2 S 2 ) dissolved in 5moL / L aqueous sodium hydroxide solution, As 2 S 2 The solid-to-liquid ratio with sodium hydroxide solution is 50g: 1L;
[0028] 2) Set the weight to As 2 S 2 100 times of chitosan is prepared into the chitosan acetic acid aqueous solution whose weight volume concentration is 10g: 1L, and slowly adds the As of step 1) 2 S 2 In the aqueous solution, under stirring, slowly add the molar ratio of As 2 S 2 7 times of hydrazine hydrate, adjust the pH of the reaction system to 8.5, and react at room temperature for 5 hours;
[0029] 3) The reaction solution obtained in step 2) is filtered and separated under an argon atmosphere, washed with water, filtered and dehydrated, and the obtained filter cake is vacuum-dried at a temperature below 80°C and crushed to 500 mesh to obtain a simple substance with biological effects arsenic.
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More