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.

TISAB IV Solution for Determination of Fluoride, Supelco®

Supplier: Merck

Total ionic strength adjustment buffers (TISAB), is generally used for the microdetermination of fluorides.

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ISA (ionic strength adjustment solution: 1 M KCl), Supelco®

Supplier: Merck

Solution used to establish a constant ionic strength in a sample solution containing e.g. calcium for det. with ISE.

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VWR®, Tris buffer solution, pH 8 (1 mol/L) for biotechnology

Supplier: VWR Chemicals

Tris (hydroxymethyl) aminomethane.

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VWR® Buffer Tablets for Haematology

Supplier: VWR Chemicals

These tablets provide a rapid and convenient method of preparing a buffer solution.

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VWR®, MOPS 10X buffer for biotechnology

Supplier: VWR Chemicals

MOPS is a zwitterionic buffer used as a running buffer for denaturing agarose gel electrophoresis of RNA. Having a pH buffering range from 6,5 to 7,9, MOPS works exceptionally well with formaldehyde gels at 20 mM concentration.

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J.T.Baker® Cell Lysis Solution, Biotech Reagent

Supplier: Avantor

J.T.Baker® Cell Lysis Solution Biotech Reagent is a cGMP pre-formulated and ready to use detergent optimized for the extraction and recovery of AAV particles from producer cell lines (HEK293 parental and suspension lines, SF9). J.T.Baker® Cell Lysis Solution is a proprietary blend of nonionic surfactants, free of octyl phenol ethoxylate, which demonstrates comparable performance industry standard detergents while addressing environmental concerns associated with REACH and downstream clearance concerns. Designed for Gene Therapy workflows, this formulation is easy to use and handle as it is ready-to-use, has low viscosity, does not require cold temperature shipping or storage, and is available in sizes to support processes from development to large scale commercial batches. Detail description provided in technical literature.

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J.T.Baker® DILUT-IT™, Buffer Solutions, Concentrate

Supplier: Avantor

Volumetric concentrate, for dilution to 500 ml.

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J.T.Baker® DILUT-IT™, Sodium Phosphate, Dissolution Media Concentrate

Supplier: Avantor

DILUT-IT™ dissolution media concentrate, sodium phosphate, 961,5 ml, J.T.Baker® DILUT-IT®, pH value: 6,8

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Buffers, concentrated solutions, Titrisol®, Supelco®

Supplier: Merck

Titrisol® buffer concentrate for 500 ml buffer solution [20 °C].

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Buffer, di-Sodium hydrogen phosphate solution 0,066 M, pH 9,2, Supelco®

Supplier: Merck

Buffer stock solution 1/15 mol/l

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Borate buffer for HPLC, LiChropur™, Supelco®

Supplier: Merck

Borate buffer, 0.127 - 0.140 M

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pH buffers, colour coded, reference standards, Supelco®

Supplier: Merck

pH Buffer solution, colour coded, pH value: 4,00, ±0,01, Reference temperature: 25 °C, Red, Bottle, 1×500 ml

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Phosphate Buffer, pH 6.6 at 25 °C

Supplier: SIGMA ALDRICH MICROSCOPY

Phosphate buffer's buffering capacity is pH sensitive and is preferred to be used at physiological pH (7,2 to 7,4).

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Ionic strength adjustor buffer solution for fluoride electrode, Supelco®

Supplier: Merck

It may be used as TISAB buffer in determination of fluoride in coal, coal fly ash, phosphate rock, limestone, mineral clay, fossilised materials, oyster tissue and vegetation using pyrohydrolysis for sample decomposition.