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.
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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Buffer tablets according to Weise, Sigma-Aldrich®
Supplier: Merck
Ideal for preparing buffer solution according to WEISE for staining of blood smears.
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Reagents for complexometric titration with EDTA, Supelco®
Supplier: Merck
Ammonium buffer solution for complexometry (ammonium chloride/ammonia) pH = 10 - 11, TitriPUR®
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Cesium chloride-lanthanum chloride buffer solution acc. to Schinkel for atomic absorption spectroscopy (AAS), Supelco®
Supplier: Merck
10 g/L CsCl + 100 g/L La in dilute hydrochloric acid.
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Tris-EDTA (TE) buffer solution for molecular biology, pH 7,4, BioUltra, Supelco®
Supplier: Merck
Tris-EDTA buffer solution has been used for the dilution of DNA samples.[1] It has been used for the elution of purified vector.
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Trizmal™ Buffer, Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
For use in the Naphthol AS-D Chloroacetate Esterase Kit No. 91-C.
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Citrate Buffer, Concentrate, Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Citrate buffer solution, 0.38 mol/L, pH 5.4 when diluted according to procedure 386A.
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TISAB I Solution, Supelco®
Supplier: Merck
TISAB, in general, is mixed with samples, as it helps in maintaining the ionic strength and pH constant. It is mainly used to decomplex metal-F complexes.
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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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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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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, 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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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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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, Certipur®, colour coded, Supelco®
Supplier: Merck
Materials for the precise calibration and monitoring of pH meters.
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