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.
VWR® UltraPure, Buffer, concentrate (phosphate buffered saline)
Supplier: VWR Chemicals
Washing buffer, PBS buffer solution 10X concentrate (phosphate buffered saline)
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VWR® Buffer, MOPS-SDS, 20X, UltraPure Grade
Supplier: VWR Chemicals
Useful for high resolution of proteins on neutral pH SDS-PAGE gels.
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Buffer, Tris-EDTA solution
Supplier: BDH US PRODUCED
Tris-EDTA solution (TE solution) contains ultra pure deionised water, 0,5 M EDTA with pH 7,5 and 1 M tris with pH 8.
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VWR®, Phosphate Buffered Saline (PBS), pH 7,4
Supplier: VWR Chemicals
Phosphate Buffered Saline (PBS) is a buffer solution containing sodium chloride, sodium phosphate and potassium chloride. PBS helps to maintain a constant pH, is isotonic and non toxic to cells, and provide cells with water and essential inorganic ions. This formulation does not contain calcium and magnesium.
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VWR® Buffer Standard Solutions
Supplier: VWR Chemicals
Buffer Standard solution, Biotechnology Grade, pH 值: 10,0, ±0,03, 参考温度: 25 °C, VWR®, Bottle
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VWR® Sodium Acetate Buffer Solution, pH 5,2 (3 mol/L) for Biotechnology
Supplier: VWR Chemicals
Sodium acetate buffer, VWR®, 3 M, pH 值: 5,2
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VWR® UltraPure, Tris-glycine buffers, 10X concentrate
Supplier: VWR Chemicals
Running buffers for both 1-D and 2-D protein gel electrophoresis.
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VWR® Buffer, MES-SDS, 20X, UltraPure Grade
Supplier: VWR Chemicals
Useful for high resolution of proteins on neutral pH SDS-PAGE gels.
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J.T.Baker® BAKER ANALYZED®, Buffer Solutions
Supplier: Avantor
Ready-to-use pH buffers are manufactured in large lots to stringent specifications and utilise quality control procedures to reduce lot-to-lot variability. You can eliminate the time and expense of preparation and standardisation of solutions, helping streamline high-volume analytical work in applications such as quality control.
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VWR®, Buffer, ammonia solution, pH 10 ready to use
Supplier: VWR Chemicals
Ideal for hardness of water determination.
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J.T.Baker® Cell Lysis Solution, Ultrapure Bioreagent
Supplier: Avantor
J.T. Baker® Cell Lysis Solution. Optimized multi-component, ready-to-use solution for extraction and recovery of AAV particles from HEK293 or SF9 cells. The product offers quantitative recovery through efficient cell lysis and protection of vector particles against shear stress. The solution is formulated with non-ionic detergents which are octyl phenol ethoxylate free.
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VWR®, pH electrode maintenance kit
Supplier: VWR Chemicals
The measurement of the pH value is one of the most frequently and universally made measurements in science.
What is often not fully understood is the fact that a large number of problems related to pH measurement is the
correct selection, care or maintenance of the electrodes with particular emphasis on the reference electrode.
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J.T.Baker® BAKER BIO-ANALYZED® Buffer B: 20 mm NaOH/1,0 M NaCl in 10% Acetonitrile
Supplier: Avantor
Buffer B, J.T.Baker® BAKER BIO-ANALYZED®, 20 mM NaOH/1,0 M NaCl
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VWR®, SSC buffer, 20X, ultra-pure grade
Supplier: VWR Chemicals
SSC buffer is a hybridisation buffer for Northern and Southern blots.
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VWR® Buffer Solutions, Secondary Standards
Supplier: VWR Chemicals
Buffer solutions, secondary standards, pH 值: 7,413, ±0,010, 参考温度: 25 °C, VWR®, Plastic bottle
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J.T.Baker® PharmaTest™, pH Buffer, Ammonia-Ammonium Chloride
Supplier: Avantor
Ammonia-ammonium chloride buffer, Ammonia, pH 值: 10,08 - 10,12, J.T.Baker® PharmaTest™