Buffere

Buffere modstår pH-ændringer og beskytter prøver, når der tilsættes syrer eller baser. Pulver- og flydende former sporer effektivt proteiner under elektroforeseisolering og -separation. Saltbufferne kan også bruges til at kalibrere og standardisere pH-metre for nøjagtige aflæsninger. Blokerende stoffer forhindrer antistofbinding til membranfri steder, der ville producere en interfererende baggrund. Buffere kan fås i flydende eller dehydrerede formater i forskellige koncentrationer, der passer til ethvert behov.

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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TISAB-III solution for fluoride determination, Supelco®

Supplier: Merck

TISAB III solution for fluoride determinations

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Buffer solutions, Certipur®, colour coded, Supelco®

Supplier: Merck

Materialer til præcis kalibrering og kontrol af pH-instrumenter.

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

Supplier: Merck

Materialer til præcis kalibrering og kontrol af pH-instrumenter.

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Standardreferencematerialer og bufferopløsninger, CertiPUR®, Supelco®

Supplier: Merck

Materialer til præcis kalibrering og kontrol af pH-instrumenter.

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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-værdi: 7,2

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VWR® pH Buffer Solution According to Reag. Ph. Eur. 4000600

Supplier: VWR Chemicals

Contents: ammonium acetate R / water R / hydrochloric acid R1.

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VWR® UltraPure, Phosphate buffered saline (PBS), powdered

Supplier: VWR Chemicals

PBS, Ultra Pure Grade is a powdered, magnesium- and calcium-free formulation of PBS suitable for cell culture and for use in flow cytometry applications.

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VWR®, EDTA buffer solution pH 8,0 (0,5 mol/L) for biotechnology

Supplier: VWR Chemicals

Cloning Buffer, EDTA buffer solution pH 8,0 (0,5 mol/l) for biotechnology

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VWR® AVS TITRINORM, Cesium chloride/aluminium nitrate buffer solution acc. to schuhknecht and schinkel for determination of na, k and li by flame aas

Supplier: VWR Chemicals

This material is intended for use as an ionisation buffer for AAS

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VWR® pH Buffer, Acetic Acid-Ammonium Acetate, pH 6,8, REAGENT

Supplier: VWR Chemicals

Ready to use test solution (TS).

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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.