A nanofiber film blood lead color sensor and detection method thereof
A color sensor, nanofiber membrane technology, applied in color measurement device, color/spectral characteristic measurement and other directions, can solve the problems of cumbersome pretreatment process, inability to detect lead content, unstable solution properties, etc. The effect of simple production equipment and intuitive results with few interference factors
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[0040] Example 1
[0041] One, Preparation of nanofiber membrane blood lead color sensor
[0042] Step 1: Under the condition of room temperature 25℃, dissolve 0.8g of nitrocellulose in a stirred tank at a speed of 50rpm and dissolve 9.2g of polytetrafluoroethylene and N,N-dimethylformamide in a weight ratio of 3:2 In the mixed solvent prepared, stir for 6 hours to completely dissolve the nitrocellulose;
[0043] The second step: under the conditions of room temperature 25℃ and humidity 25%, the nitrocellulose solution prepared in the first step is input to the spinneret at a flow rate of 0.2mL / h, and the spinneret is connected to a 10kV power supply. Electrospinning to prepare nitrocellulose nanofibers; deposit the spun fibers on ITO conductive glass, the distance between the ITO conductive glass and the spinneret is 6cm; after spinning is completed, put the ITO conductive glass into a vacuum oven Dry it at 60°C for 1 hour to obtain a nitrated nanocellulose membrane;
[0044] The...
Example Embodiment
[0061] Example 2
[0062] 1. Preparation of nanofiber membrane blood lead color sensor
[0063] Step 1: Under the condition of room temperature 25℃, dissolve 0.8g of nitrocellulose in a stirred tank at a speed of 80rpm and dissolve in 9.2g of tetraethylene glycol and N,N-dimethylformamide with a weight ratio of 3:2 In the mixed solvent, stir for 6 hours to completely dissolve the nitrocellulose;
[0064] Step 2: Under the conditions of room temperature 25℃ and humidity 20%, the nitrocellulose solution prepared in the first step is input to the spinneret at a flow rate of 0.1mL / h, and the spinneret is connected to a 15kV power supply. Electrospinning to prepare nitrocellulose nanofibers; deposit the spun fibers on aluminum foil, the distance between the aluminum foil and the spinneret is 10cm; after the spinning is completed, put the aluminum foil in a vacuum oven and dry at 60℃2 Hours to obtain a nitrocellulose nano-cellulose membrane;
[0065] The third step: In a three-necked flas...
Example Embodiment
[0082] Example 3
[0083] One, Preparation of nanofiber membrane blood lead color sensor
[0084] Step 1: Under the condition of room temperature 25℃, dissolve 0.8 g of nitrocellulose in a stirred tank at a speed of 50 rpm in a mixed solvent of 9.2 g of acetone and methyl n-butyl ketone with a weight ratio of 1:1 , Stir for 7h to completely dissolve the nitrocellulose;
[0085] Step 2: Under the conditions of room temperature 25℃ and humidity 30%, the nitrocellulose solution prepared in the first step is input to the spinneret at a flow rate of 1mL / h, and the spinneret is connected to a 12kV power supply for static electricity Spinning to prepare nitrocellulose nanofibers; deposit the spun fibers on cardboard, the distance between the cardboard and the spinneret is 10cm; after spinning is completed, put the cardboard in a vacuum oven at 60℃ Dry for 1 hour to obtain a nitrated nanocellulose membrane;
[0086] The third step: In a three-necked flask, dissolve the chloroauric acid ra...
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