Soluzioni tampone

Resistendo alle variazioni di pH, i tamponi proteggono i campioni quando vengono aggiunti acidi o basi. Disponibili in polvere e in forma liquida, tracciano efficacemente le proteine durante l'isolamento e la separazione tramite elettroforesi. I tamponi salati possono anche essere utilizzati per calibrare e standardizzare i pHmetri per ottenere letture accurate. Le sostanze bloccanti impediscono l'adesione degli anticorpi ai siti liberi dalla membrana, che produrrebbero un background interferente. In varie concentrazioni per soddisfare qualsiasi esigenza, i tamponi possono essere disponibili in formato liquido o disidratato.

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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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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 pH e soluzioni tampone, CertiPUR®, Supelco®

Supplier: Merck

Per la calibrazione dei pH-metri e degli strumenti di analisi.

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

Supplier: Merck

Per la calibrazione di precisione e il monitoraggio dei pHmetri.

Opzioni sostenibili disponibili

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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, Valore pH: 7,2

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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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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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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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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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TISAB solution for Fluoride Determination, Supelco®

Supplier: Merck

TISAB solution for fluoride determination

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Cesio cloruro-alluminio nitrato soluzione tampone secondo Schuhknecht e Schinkel, Supelco®

Supplier: Merck

Cesio cloruro-alluminio nitrato soluzione tampone secondo Schuhknecht e Schinkel per la determinazione mediante spettrometria a fiamma di sodio, potassio e litio (enth./cont. 50 g/l CsCl + 250 g/l Al(NO₃)₃ * 9 H₂O)