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.

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Glycine buffer, Sigma-Aldrich®

Supplier: Merck

For use in the enzymatic determination of lactate using lactic dehydrogenase.

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pH Buffers

Supplier: METTLER

pH buffer, 3,9 M NaCl, pH value: 9,21, 6×250 ml

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Supplies and Consumable Kits

Supplier: MACHEREY-NAGEL

Additional supplies and consumables for DNA and RNA extraction kits.

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TISAB solution for Fluoride Determination, Supelco®

Supplier: Merck

TISAB solution for fluoride determination

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Cesium chloride-aluminium nitrate buffer solution acc. to Schuhknecht and Schinkel, Supelco®

Supplier: Merck

Cesium chloride-aluminium nitrate buffer solution acc. to Schuhknecht and Schinkel for the determination of sodium, potassium and lithium by flame spectrometry (enth./cont. 50 g/l CsCl + 250 g/l Al(NO₃)₃ * 9 H₂O)

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Buffer, TRIS solution pH 7,5 (1 mol/L), Sigma-Aldrich®

Supplier: Merck

Cloning Buffer, TRIS buffer solution pH 7,5 (1 mol/l)

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Buffer, SSC solution 20X concentrate (saline-sodium citrate), Sigma-Aldrich®

Supplier: Merck

Hybridisation Buffer, SSC buffer solution 20X concentrate (saline-sodium citrate)

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

Supplier: Merck

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

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Tris-EDTA buffer solution, pH 8,0, for molecular biology, BioUltra, Sigma-Aldrich®

Supplier: Merck

This buffer is 10 mM Tris-HCl and 1 mM disodium EDTA.

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

Supplier: Merck

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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Technical pH buffer solutions in sachets, HI 50000 series

Supplier: HANNA

These technical calibration buffers produced in accordance with ISO 3696/BS3978 standards using high purity salts, deionised water, certified weight-checked balances, and Class A glassware in a temperature controlled environment monitored with certified thermometers.

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Buffer solutions

Supplier: HANNA

Solutions in sachets ensure optimum precision. The plastic-coated sachet provides a perfect liquid seal and good protection from light. The solutions should only be used once to avoid any danger of contamination. They also satisfy the requirements of the GLP and ISO standards. They have been adjusted using a pH meter that has been calibrated according to the NIST standards.

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pH Buffer solutions, CX-1

Supplier: Thermo Fisher Scientific

Delivers robust reproducible gradients with the Thermo Scientific™ pH buffer platform that is applicable to a wide range of MAbs and ready to use with existing LC columns and systems, without the need to formulate mobile phases.