QIAquick® PCR Purification Kit
The QIAquick PCR Purification Kit (cat. nos. 28104 and 28106) can be stored at room temperature (15–25°C) for up to 12 months.
For more information, please refer to the QIAquick Spin Handbook, March 2008, which can be found at: www.qiagen/handbooks.
For technical assistance, please call toll-free 00800-22-44-6000, or find regional phone numbers at www.qiagen/contact.
Notes before starting
Add ethanol (96–100%) to Buffer PE before use (see bottle label for volume).
All centrifugation steps are carried out at 17,900 x g (13,000 rpm) in a conventional table-top microcentrifuge at room temperature.
Add 1:250 volume pH indicator I to Buffer PB. The yellow color of Buffer PB with pH indicator I indicates a pH of ≤7.5. If the purified PCR product is to be used in sensitive microarray applications, it may be beneficial to use Buffer PB without
the addition of pH indicator I. Do not add pH indicator I to buffer aliquots.
1.Add 5 volumes Buffer PB to 1 volume of the PCR reaction and mix. If the color of
the mixture is orange or violet, add 10 μl 3 M sodium acetate, pH 5.0, and mix.
The color of the mixture will turn yellow.
2.Place a QIAquick column in S a provided 2 ml collection tube or into
z a vacuum manifold. For details on how to set up a vacuum manifold, refer to the QIAquick Spin Handbook.
3.To bind DNA, apply the sample to the QIAquick column and S centrifuge for
30–60 s or z apply vacuum to the manifold until all the samples have passed
through the column. S Discard flow-through and place the QIAquick column
back in the same tube.
October 2010
4.To wash, add 0.75 ml Buffer PE to the QIAquick column S centrifuge for
30–60 s or z apply vacuum. S Discard flow-through and place the QIAquick column back in the same tube.
5.Centrifuge the QIAquick column once more in the provided 2 ml collection tube
for 1 min to remove residual wash buffer.
6.Place each QIAquick column in a clean 1.5 ml microcentrifuge tube.
7.To elute DNA, add 50 μl Buffer EB (10 mM Tris·Cl, pH 8.5) or water (pH 7.0–
8.5) to the center of the QIAquick membrane and centrifuge the column for
1 min. For increased DNA concentration, add 30 μl elution buffer to the center
of the QIAquick membrane, let the column stand for 1 min, and then centrifuge.
8.If the purified DNA is to be analyzed on a gel, add 1 volume of Loading Dye to
5 volumes of purified DNA. Mix the solution by pipetting up and down before
loading the gel.
For up-to-date licensing information and product-specific Array disclaimers, see the respective QIAGEN kit handbook or user
manual.
Trademarks: QIAGEN®, QIAquick® (QIAGEN Group). 1063920 10/2010
© 2010 QIAGEN, all rights reserved.
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