Food safety detection device and method
A food safety and detection device technology, which is applied in the direction of measuring devices, instruments, and material analysis through electromagnetic means, can solve problems such as threats to human health, and achieve the effects of enhanced physical adsorption capacity, good catalytic properties, and large specific surface area
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Embodiment 1
[0017] An electrochemical device for food safety detection, characterized in that it comprises the following steps:
[0018] (1) Disperse 50 mg of carbon nanotubes in deionized water after acidification treatment, and ultrasonically treat for 30 minutes;
[0019] (2) Add 0.4mmol of manganese chloride, 0.1mmol of sodium oxalate, 20mg of PVP, and 15mg of disodium edetate into 50ml of aqueous solution, mix well by ultrasonication for 20min, and conduct a hydrothermal reaction at 160°C for 12h;
[0020] (3) The obtained CNTs / Mn 2 o 3 Wash three times with deionized water, then add 100ml of water, then add 10ml of a solution of 20% ammonia water 3mL, 10mg resorcinol and 10mg formaldehyde, react at 50°C to form CNTs / Mn 2 o 3 / phenolic resin compound;
[0021] (4) The obtained CNTs / Mn 2 o 3 The / phenolic resin complex is further washed with deionized water, then fully mixed with 0.2mmol ferric chloride and 0.1mmol ferrous chloride in a nitrogen atmosphere, slowly dripped into ...
Embodiment 2
[0024] A food safety detection device is characterized in that it comprises the following steps:
[0025] (1) Disperse 50 mg of carbon nanotubes in deionized water after acidification treatment, and ultrasonically treat for 30 minutes;
[0026] (2) Add 0.4mmol of manganese chloride, 0.1mmol of sodium oxalate, 20mg of PVP, and 15mg of disodium edetate into 50ml of aqueous solution, mix well by ultrasonication for 20min, and conduct a hydrothermal reaction at 180°C for 12h;
[0027] (3) The obtained CNTs / Mn 2 o 3 Rinse three times with deionized water, then add 100ml of water, then add a solution of 10% ammonia 3mL, 10mg resorcinol and 10mg formaldehyde, react at 60°C to form CNTs / Mn 2 o 3 / phenolic resin compound;
[0028] (4) The obtained CNTs / Mn 2 o 3 The / phenolic resin complex was further washed with deionized water, then fully mixed with 0.2mmol ferric chloride and 0.1mmol ferrous chloride in a nitrogen atmosphere, slowly dripped into 8ml of 20% concentrated ammonia...
Embodiment 3
[0031] A food safety detection device, characterized in that,
[0032] (1) Disperse 50 mg of carbon nanotubes in deionized water after acidification treatment, and ultrasonically treat for 30 minutes;
[0033] (2) Add 0.4mmol of manganese chloride, 0.1mmol of sodium oxalate, 20mg of PVP, and 15mg of disodium ethylenediaminetetraacetate into 50ml of aqueous solution, mix well by ultrasonication for 20min, and conduct a hydrothermal reaction at 180°C for 15h;
[0034] (3) The obtained CNTs / Mn 2 o 3 Wash with deionized water three times, then add 100ml of water, then add a solution of 20% ammonia 3mL, 10mg resorcinol and 10mg formaldehyde, react at 70°C to form CNTs / Mn 2 o 3 / phenolic resin compound;
[0035] (4) The obtained CNTs / Mn 2 o 3The / phenolic resin complex was further washed with deionized water, then fully mixed with 0.2mmol ferric chloride and 0.1mmol ferrous chloride in a nitrogen atmosphere, slowly dripped 9ml of 20% concentrated ammonia water, reacted at 80°...
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