FAQ-199
What is the composition of Buffer EB?
The composition of Buffer EB is:
- 10 mM Tris-Cl, pH 8.5
Buffer EB is the elution buffer used in the QIAquick PCR, Gel Extraction, Nucleotide Removal Kits, and MinElute Kits for DNA cleanup, and the QIAprep Miniprep Kits for small-scale plasmid purification. The purified DNA can also be eluted in TE (10 mM Tris-Cl, 1 mM EDTA, pH 8.0), but the EDTA may inhibit subsequent enzymatic reactions.
Related products
QIAquick PCR Purification Kit
The QIAquick PCR Purification Kit provides spin columns, buffers, and collection tubes for silica-membrane-based purification of PCR products >100 bp. DNA of up to 10 kb is purified using a simple and fast bind-wash-elute procedure and an elution volume of 30–50 μl. An optional pH indicator allows easy determination of the optimal pH for DNA binding to the spin column. The procedure can be fully automated on the QIAcube Connect.
For optimal results it is recommended to use this product together with QIAvac 24 Plus.
QIAquick PCR Purification standard protocols can also be executed using the TRACKMAN Connected system, paired with PIPETMAN M Connected pipettes, both from Gilson. The TRACKMAN Connected system guides researchers through the QIAquick PCR Purification protocols while automatically adjusting the Bluetooth-enabled PIPETMAN M Connected pipette settings. Each step of the protocol execution is recorded to accelerate reporting by generating a comprehensive run report. Download more information.
QIAquick Nucleotide Removal Kit
The QIAquick Nucleotide Removal Kit provides spin columns, buffers, and collection tubes for silica-membrane-based purification of oligonucleotides and DNA. Unincorporated nucleotides, salts, and other contaminants are removed and oligonucleotides (>17 nt) and DNA fragments ranging from 40 bp to 10 kb are purified using a simple and fast bind-wash-elute procedure and an elution volume of 30–200 µl. The procedure is fully automated on the QIAcube Connect.
QIAquick Gel Extraction Kit
The QIAquick Gel Extraction Kit provides spin columns, buffers, and collection tubes for silica-membrane-based purification of DNA fragments from gels (up to 400 mg slices) or enzymatic reactions. DNA ranging from 70 bp to 10 kb is purified using a simple and fast bind-wash-elute procedure and an elution volume of 30–50 µl. An integrated pH indicator allows easy determination of the optimal pH for DNA binding to the spin column. The QIAquick PCR & Gel Cleanup Kit also provides buffers for purification of PCR products >100 bp and DNA of up to 10 kb. The procedure can be fully automated on the QIAcube Connect.
For optimal results it is recommended to use this product together with QIAvac 24 Plus.
QIAprep Spin Miniprep Kit
The QIAprep Spin Miniprep Kit is designed for isolating high-purity plasmid or cosmid DNA, offering up to 20 µg yields for various molecular biology applications like sequencing and cloning. Higher yields (up to 30 µg) can be achieved using the High-Yield Supplementary Protocol. The kit is automatable on the QIAcube Connect.
Want to try the QIAprep Spin Miniprep Kit for the first time? Request a quote for a trial kit.
For optimal results, we recommend pairing this kit with the QIAvac 24 Plus system.
MinElute Reaction Cleanup Kit
The MinElute Reaction Cleanup Kit provides spin columns, buffers, and collection tubes for silica membrane-based purification of DNA 70 bp – 4 kb in size from enzymatic reactions. The spin columns are designed to allow elution in very small volumes (as little as 10 µl), delivering highly concentrated DNA in high yields. An integrated pH indicator allows easy determination of the optimal pH for DNA binding to the spin column. The procedure can be fully automated on the QIAcube Connect. DNA fragments purified with the MinElute system are ready for direct use in all applications, including sequencing, microarray analysis, ligation and transformation, restriction digestion, labeling, microinjection, PCR, and in vitro transcription.
For optimal results it is recommended to use this product together with QIAvac 24 Plus.
MinElute PCR Purification Kit
The MinElute PCR Purification Kit provides spin columns, buffers, and collection tubes for silica-membrane-based purification of PCR products 70 bp – 4 kb in size. The spin columns are designed to allow elution in very small volumes (as little as 10 μl), delivering high yields of highly concentrated DNA. An optional pH indicator allows easy determination of the optimal pH for DNA binding to the spin column. The procedure can be fully automated on the QIAcube Connect.
MinElute Gel Extraction Kit
The MinElute Gel Extraction Kit provides spin columns, buffers, and collection tubes for silica-membrane-based purification of DNA fragments of 70 bp – 4 kb from up to 400 mg gel slices. The spin columns are designed to allow elution in very small volumes (as little as 10 µL), delivering high yields of highly concentrated DNA. An integrated pH indicator allows easy determination of the optimal pH for DNA binding to the spin column. DNA fragments purified with the MinElute system are ready for direct use in all applications, including sequencing, microarray analysis, ligation and transformation, restriction digestion, labeling, microinjection, PCR, and in vitro transcription. The MinElute Gel Extraction Kit can be automated on the QIAcube Connect.
For optimal results it is recommended to use this product together with QIAvac 24 Plus.
Buffer EB
Buffer EB is used an elution buffer when following Allprep, QIAprep, QIAquick, QIAGEN Plasmid Plus, and MinElute procedures.
Plasmid Buffers
Plasmid Buffers are used in plasmid DNA purification procedures. They include Buffer P1 (resuspension buffer), Buffer P2 (lysis buffer), Buffer N3 and Buffer P3 (neutralization buffers), Buffer QC (wash buffer) Buffer QBT (equilibration buffer) and Buffer QF (elution buffer).

