Method of preparing biological high polymer nano selenium composite film
A technology of nano-selenium and high polymer, which is applied in the field of preparation of biopolymer nano-selenium composite membranes, can solve the problems of complex preparation process and low content of nano-selenium, and achieve the effect of simple and easy preparation process and enhanced health care effect
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Embodiment 1
[0021] At a temperature of 25°C, the concentration is 0.5mmol L -1 Selenium dioxide with 2mmol·L -1 Mix 2ml each of vitamin C, stir until brick red nano-selenium is produced, then add 1mmol·L -1 2ml of selenocystine, fully stirred and left to react for 48 hours, the brick red color in the solution disappeared, and a uniform red biopolymer nano-selenium composite film spontaneously formed at the bottom of the container.
Embodiment 2
[0023] At a temperature of 15°C, the concentration is 1.0mmol L -1 Selenium dioxide with 4mmol·L -1 Mix 2ml each of vitamin C, stir until brick red nano-selenium is produced, then add 2mmol·L -1 2ml of selenocystine, fully stirred and left to react for 48 hours, the brick red color in the solution disappeared, and a uniform red biopolymer nano-selenium composite film spontaneously formed at the bottom of the container.
Embodiment 3
[0025] At a temperature of 35°C, the concentration is 0.5mmol L -1 Sodium selenite with 2mmol·L -1 Mix 2ml each of vitamin C, stir until brick red nano-selenium is produced, then add 1mmol·L -1 2ml of selenomethionine, fully stirred and left to react for 24 hours, the brick red in the solution disappeared, and a uniform red biopolymer nano-selenium composite film spontaneously formed at the bottom of the container.
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