Packing method and detecting method of gel chromatography column
A gel chromatography column and column packing technology, applied in the field of chromatography, can solve the problems of toxic reagents, volatile, product quality and safety impact, etc., and achieve the effect of improving column packing efficiency
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[0035] Example 1:
[0036] The gel is Sephacryl S-400HR. produced by GE. See the process figure 1 .
[0037] 1) Preparation of gel suspension: use 0.02mol / L NaOH solution and 0.01mol / L PBS (containing 0.05mol / L NaCl, pH7.2) solution 1:1 to mix the alkali salt buffer solution for homogenization, gel and alkali salt The ratio of buffer is 1:1 to obtain a gel suspension
[0038] 2) Packing the column: add purified water with a height of 1cm at the bottom of the column tube, then pack the column with gel suspension, pack the column head of the chromatography column, and pump the 0.02mol / L NaOH solution with the constant pressure of 1.0bar. 0.01mol / L PBS (containing 0.05mol / L NaCl, pH 7.2) solution 1:1 mixed alkali salt solution, when the gel height is constant at constant pressure, the prepared gel column is 65cm high; proceed to the next step;
[0039] 3) Equilibration: Equilibrate 1 column volume with 0.01mol / L PBS (containing 0.05mol / L NaCl, pH7.2) buffer, and the equilibri...
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[0046] Example 2
[0047] 1) Preparation of gel suspension: mix 0.4mol / L NaOH solution and 0.01mol / L PBS (containing 0.8mol / L NaCl, pH 7.4) solution 1:3 for homogenization; the ratio of gel to alkali-salt-alkali-salt buffer solution 1:3; get a gel suspension
[0048]2) Column loading: add purified water with a height of 2cm at the bottom of the column tube, load the gel suspension, install the column head, and then pump 0.4mol / L NaOH solution and 0.01mol / L PBS (containing 0.8mol / L NaCl, pH7.4) solution 1:3 mixed alkali-salt buffer to prepare gel column, the constant pressure is 1.0bar to the same height, and the prepared gel column is 70cm high;
[0049] 3) Equilibrium: Equilibrate 3 times the column volume with 0.01mol / L PBS (containing 0.8mol / LNaCl, pH7.4) buffer, and the equilibrium flow rate is 35cm / h;
[0050] 4) Column efficiency detection:
[0051] a) Acetone control: use purified water to prepare 2% acetone solution as a tracer, the loading volume is 4% of the colum...
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[0056] Example 3
[0057] 1) Preparation of gel suspension: mix 0.2mol / L NaOH solution and 0.01mol / L PBS (containing 0.3mol / L NaCl, pH 7.3) solution 1:1.5 for homogenization, and the ratio of gel to alkali-salt buffer is 1:1. 1.5; obtain a gel suspension;
[0058] 2) Column loading: add purified water with a height of 4cm at the bottom of the column tube, load the gel suspension, install the column head, and pump 0.2mol / L NaOH solution and 0.01mol / L PBS (containing 0.3mol / L NaCl, pH7.3) solution 1:1.5 mixed alkali salt solution to prepare gel column, the constant pressure is 1.0bar to the same height, the prepared gel column is 72cm high;
[0059] 3) Equilibration: Equilibrate 1.5 times the column volume with 0.01mol / L PBS (containing 0.3mol / L NaCl, pH 7.3) buffer, and the equilibrium flow rate is 34cm / h;
[0060] 4) Column efficiency detection:
[0061] a) Acetone control: use purified water to prepare 2% acetone solution as a tracer, the sample volume is 2% of the column ...
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