缓冲（液）

Resisting pH changes, buffers protect samples when acids or alkali is added. Powder and liquid forms efficiently track proteins during electrophoresis isolation and separation. The salty buffers can also be used to calibrate and standardize pH meters for accurate readings. Blocking substances stop antibody attachment to membrane free sites that would produce an interfering background. In various concentrations to fit any need, the buffers may come in liquids or dehydrated formats.

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DNA/RNA clean-up buffers

Supplier: OMEGA BIOTEK

DNA wash buffer concentrate, Omega Bio-Tek

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Wash buffer, Pierce™

Supplier: Thermo Fisher Scientific

These wash buffers are designed for use in dialysis, cross-linking, enzyme assays, ELISAs, immunohistochemistry, protein plate-coating, biotinylation applications.

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pH buffer, single-use, SINGLET™

Supplier: HACH

These buffers solutions packs are used for pH meter calibration. The sealed foil pouches can be transported easily and safely without any spillage and also prevents contamination or exposure to air of the solutions.

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Phosphate buffered saline (PBS), tablet, Sigma-Aldrich®

Supplier: SIGMAALDRICH

Phosphate buffered saline (PBS) is a buffer solution used in biological research. It is a water based salt solution containing sodium phosphate, sodium chloride and, in some formulations, it contains potassium chloride and potassium phosphate.

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Buffer, HEPES Solution pH 7,3 (1 mol/l)

Supplier: THERMO FISHER BRAND

HEPES buffer solution (1 mol/l), pH 值: 7,3

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Buffer, Trizma® hydrochloride solution, TRIS solution pH 7,4 (1 mol/L), BioPerformance Certified, Sigma-Aldrich®

Supplier: SIGMAALDRICH

Cloning Buffer, TRIS buffer solution pH 7,4 (1 mol/l)

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Tris-glycine buffer (10X), AccuGENE™

Supplier: LONZA

AccuGENE™ electrophoresis buffers are prepared with high quality reagents and use 18 megOhm water. Products are filtered using a 0,45 µm filter.

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Buffers for Biacore Systems

Supplier: GE HEALTHCARE

Buffers developed and verified to work in Biacore™ systems.

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PBS buffer

Supplier: GE HEALTHCARE

Phosphate buffered saline solution, available with or without detergent, recommended as running buffer for small molecule analysis in Biacore systems. Concentrated stock solution, yielding pH 7,4 when diluted 10X.

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10X TAE buffer, liquid, Corning®

Supplier: MEDIATECH

Tris-Acetate-EDTA (TAE) buffer is used in DNA agarose gel electrophoresis, both in the agarose gel itself and the running buffer

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Buffers, citrate, 0,5 M solutions

Supplier: Thermo Fisher Scientific

Citrate, buffer solution, 0,5 M, pH 值: 4,5, Colourless, Odourless, Liquid

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pH buffer solutions, NIST/DIN

Supplier: METTLER TOLEDO

The NIST/DIN pH buffers are specified to three decimal places, e.g. 9.180, offering the highest possible pH precision.

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EDTA, 0.5M pH 8.0, Corning®

Supplier: MEDIATECH

EDTA (ethylenediaminetetraacetic acid) is a polyamino carboxylic acid. It is a colorless, water-soluble solid and is useful as a chelating agent due to its ability to "sequester" metal ions such as Ca2+ and Fe3+. These cations are responsible for various undesirable effects in molecular biological and cell culture processes. After being bound by EDTA, these metal ions remain in the solution but exhibit diminished reactivity. The use of EDTA therefore allows for greater control over many experiments.