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 concentrate, citrate phosphate, Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
These buffers are used to elute adult hemoglobin by the procedure of Oski and Naiman, a modification of the Kleihauer Betke procedure for the demonstration of fetal hemoglobin.
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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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Phosphate Buffer Solution
Supplier: SIGMA ALDRICH MICROSCOPY
Contains sodium and potassium phosphates. Intended for use in the Sigma Butyrate Esterase Procedure, No. 181B.
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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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Borate buffer for HPLC, LiChropur™, Supelco®
Supplier: Merck
Borate buffer, 0.127 - 0.140 M
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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.
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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, Dispenser, 1×gallon
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Buffer, TBE solution 10X concentrate (TRIS-borate-EDTA buffer), Millipore®
Supplier: Merck
Running Buffer, TBE buffer solution 10X concentrate (TRIS-borate-EDTA buffer)
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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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Buffer solutions in sachets, Certipur®, Supelco®
Supplier: Merck
For calibration of pH meters.
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Buffer solutions, Certipur®, ready to use, 1 litre bottles, Supelco®
Supplier: Merck
Materials for the precise calibration and monitoring of pH meters.
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#: 20864.320
Supplier: VWR Chemicals
#: 83640.320
Supplier: VWR Chemicals
#: 31770.294
Supplier: VWR Chemicals
#: 1.00030.2500
Supplier: Merck
#: 83645.320
Supplier: VWR Chemicals