Method for purifying non-specific amplification PCR product based on paramagnetic particle method
A non-specific, magnetic bead method, applied in the biological field, to achieve the effect of convenient and fast process and rapid purification
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Embodiment 1
[0034] A method for purifying non-specifically amplified PCR products based on the magnetic bead method, characterized in that: it comprises the following steps:
[0035] 1) Detect the PCR product by agarose gel. When the non-specific band is observed to be separated from the target band, cut off the target band with a clean knife, put it into a centrifuge tube, and then add the working band to the centrifuge tube. Solution A, the weight ratio of the target band to working solution A is 1:3, and then incubated at 60°C for 10 minutes;
[0036] 2) Add working solution B equal to the volume of the solution in the above centrifuge tube, shake for 30s, and place at room temperature for 10 minutes, then place the centrifuge tube on the magnetic stand to separate the magnetic beads. When the magnetic beads are adsorbed to the side of the centrifuge tube, Aspirate the liquid and retain the magnetic beads;
[0037] 3) Add 1ml of working solution C to the above-mentioned centrifuge tub...
Embodiment 2
[0044] A method for purifying non-specifically amplified PCR products based on the magnetic bead method, characterized in that: it comprises the following steps:
[0045] 1) Detect the PCR product by agarose gel. When the non-specific band is observed to be separated from the target band, cut off the target band with a clean knife, put it into a centrifuge tube, and then add the working band to the centrifuge tube. Solution A, the weight ratio of the target band to working solution A is 1:3, and then incubated at 50°C for 15 minutes;
[0046] 2) Add working solution B equal to the volume of the solution in the above centrifuge tube, shake for 10s, and place at room temperature for 1min, then place the centrifuge tube on the magnetic stand to separate the magnetic beads. When the magnetic beads are adsorbed to the side of the centrifuge tube, Aspirate the liquid and retain the magnetic beads;
[0047] 3) Add 0.5ml working solution C to the above-mentioned centrifuge tube conta...
Embodiment 3
[0054] A method for purifying non-specifically amplified PCR products based on the magnetic bead method, characterized in that: it comprises the following steps:
[0055] 1) Detect the PCR product by agarose gel. When the non-specific band is observed to be separated from the target band, cut off the target band with a clean knife, put it into a centrifuge tube, and then add the working band to the centrifuge tube. Solution A, the weight ratio of the target band to working solution A is 1:3, and then incubated at 70°C for 8 minutes;
[0056] 2) Add working solution B equal to the volume of the solution in the above centrifuge tube, shake for 20s, and place at room temperature for 5 minutes, then place the centrifuge tube on the magnetic stand to separate the magnetic beads. When the magnetic beads are adsorbed to the side of the centrifuge tube, Aspirate the liquid and retain the magnetic beads;
[0057] 3) Add 1.5ml working solution C to the above-mentioned centrifuge tube c...
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