buffers

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® Sodium Acetate Buffer 3,0 M Solution, pH 5,2

Supplier: VWR Chemicals

With diethyl pyrocarbonate (DEPC).

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VWR® AVS TITRINORM pH Buffer Solutions in Sachets, 20 °C

Supplier: VWR Chemicals

For calibration of pH meters.

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VWR® pH Buffer Solution According to Reag. Ph. Eur. 4000600

Supplier: VWR Chemicals

Contents: ammonium acetate R / water R / hydrochloric acid R1.

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EDTA, 0.5 M solution, pH 8.0, for biotechnology

Supplier: VWR Chemicals

Cloning Buffer, EDTA, 0,5 M solution

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VWR® UltraPure, Buffer, PBS solution (phosphate buffered saline)

Supplier: VWR Chemicals

Dulbecco's formulation without calcium and magnesium.

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VWR® pH Buffer, Acetic Acid-Ammonium Acetate, pH 6,8, REAGENT

Supplier: VWR Chemicals

Ready to use test solution (TS).

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VWR® Buffer, Ammonium Chloride, pH 10, Reag. Ph.Eur.

Supplier: VWR Chemicals

The reagent is specially intended for use in testing Ph Eur and monographs. This solution was produced according 4.1.1 of Ph Eur specifications using Ph Eur reagent quality components and water meeting the Ph Eur monograph requirement for purified water.

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VWR®, Buffers, ammonia- ammonium chloride and ammonium chloride-ammonium hydroxide USP Test solutions (TS)

Supplier: VWR Chemicals

Ready to use test solutions (TS).

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J.T.Baker® DILUT-IT™, Buffers, Acetate, Concentrated Solutions

Supplier: Avantor

Specially developed for dissolution testing of pharmaceutical dosage forms and drug discovery, easy to use DILUT-IT™ concentrates can reduce overall cost of ownership in the laboratory. Just add purified water and you are ready for testing.

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VWR® TISAB II Solution (Total Ionic Strength Adjustment Buffer) for Fluoride Determinations

Supplier: VWR Chemicals

Total ionic strength adjustment buffer solution for use with selective ion electrodes.

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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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Macron Fine Chemicals™ BuffAR® StandARd®, pH Buffer Solutions

Supplier: MACRON AVANTOR BRAND

BuffAR® StandARd® pH reference solution, pH value: 4,01, ±0,01, Macron Fine Chemicals™ BuffAR®, Red, Plastic bottle

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VWR®RapidBlock™, Blocking solution, 10x

Supplier: VWR Chemicals

RapidBlock™ solution reduces blocking time to five minutes for Western and dot blotting procedures on PVDF and nitrocellulose membranes. This protein-free formulation minimises cross-reactivity and non specific antibody binding, generating blots with low background and enhanced signal-to-noise ratio.