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.

Buffer solutions, according to EP and USP, Certipur®

Supplier: Merck

Buffer solutions intended for extremely precise calibration, qualification and monitoring of pH instruments, and for testing other buffer solutions.

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Standard reference materials and buffer solutions, CertiPUR®, Supelco®

Supplier: Merck

Materials for the precise calibration and monitoring of pH instruments.

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Buffer solutions, ready to use, referenced at 20 °C, Certipur®, Supelco®

Supplier: Merck

Materials for the precise calibration and monitoring of pH meters.

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Triethylammonium bicarbonate buffer, for HPLC, LiChropur™, Supelco®

Supplier: Merck

1M Buffer, also for use in ion-exchange chromatography and electrophoresis.

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Phosphate buffer solution, BioUltra, Supelco®

Supplier: Merck

Phosphate buffer, BioUltra, >0,044 M Na₂HPO₄, >0,022 M NaH₂PO₄, pH value: 7,2

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TISAB-III solution for fluoride determination, Supelco®

Supplier: Merck

TISAB III solution for fluoride determinations

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Buffer solutions, ready to use, referenced at 25 °C, Certipur®

Supplier: Merck

Materials for the precise calibration and monitoring of pH meters.

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Buffer solutions, Certipur®, colour coded, Supelco®

Supplier: Merck

Materials for the precise calibration and monitoring of pH meters.

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TISAB III solution (Total Ionic Strength Adjustment Buffer) for fluoride determinations, Supelco®

Supplier: Merck

TISAB III solution for fluoride determinations

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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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VWR® Buffer Standard Solutions

Supplier: VWR Chemicals

Buffer Standard solution, Biotechnology Grade, pH value: 10,0, ±0,03, Reference temperature: 25 °C, VWR®, Bottle

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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 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.