Chlorine dioxide containing injection and preparation method thereof
A chlorine dioxide and chlorine dioxide precursor technology, applied in the field of injections, can solve problems such as unsafe, low pH value of the mixed solution, and inability to be used as injections, etc., and achieve the effect of stimulating immune response and promoting tissue regeneration in situ
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[0030] The chlorine dioxide injection containing exceeding solubility of the present invention, its preparation method comprises the following steps:
[0031] 1. Produce chlorine dioxide gas with a concentration of 99.9% through a standardized method. The method for producing high-purity chlorine dioxide gas is known to those skilled in the art. For example, a common practice is to generate chlorine dioxide gas by reacting a chlorine dioxide precursor (chlorite) with an acid. In addition, there is a mixed reaction of disulfate and chlorite to produce chlorine dioxide gas.
[0032] 2. After the chlorine dioxide gas is prepared through the above reaction, it is introduced into the medium at minus 20 degrees Celsius to 11 degrees Celsius through the pipeline. The introduced medium can be directly introduced into air, nitrogen and other gaseous media or can be bubbled into the containing Diluted solutions of pharmaceutically acceptable additives commonly used in injections (such ...
Embodiment 1
[0037] Embodiment 1: Contain the preparation of 15mg / ml chlorine dioxide injection
[0038] Mix 28% sodium chlorite solution and 50% citric acid solution in the reaction kettle, guide the tube into the normal saline solution containing 0.9% sodium chloride at 1 degree Celsius, and submerge the inlet of the tube into the normal saline. The reaction kettle was heated at a constant temperature of 85 degrees Celsius for 30 minutes, and chlorine dioxide was bubbled into the physiological saline, which was always kept at a constant temperature of 1 degree Celsius by external equipment. After 30 minutes, transfer the mixed solution to an airtight container and place it at 20 degrees Celsius. After the chlorine dioxide and physiological saline are evenly mixed, store it in a refrigerator at 2-8 degrees Celsius. The chlorine dioxide solution with a concentration of 15 mg / ml was prepared through determination. The solution can be divided into 10ml glass bottles as an injection, and sto...
Embodiment 2
[0039] Embodiment 2: the toxicity test containing chlorine dioxide injection
[0040] Chlorine dioxide injection preparation: Injection A, that is, the chlorine dioxide precursor is mixed with acid to prepare an injection solution with a concentration of about 1.5%. Use deionized water to prepare a mixed solution of 7.47% sodium chlorite and 1.59% sodium chloride to prepare the first solution; use deionized water to prepare a citric acid solution with a concentration of 16.7% to prepare the second solution . Take out the same volume of solutions from different solution containers, mix them, and wait for the solutions to mix and stand still for 3 to 5 minutes. The detected chlorine dioxide concentration is about 1.5%, the pH is about 2.1, and it is used for injection within 30 minutes. Injection B, that is, an injection in which the chlorine dioxide precursor is mixed with acid and then adjusted to pH 7 by adding sodium hydroxide. Use deionized water to prepare a mixed solut...
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