pH buffere

pH-bufferopløsninger er essentielle til rutinemæssig kalibrering af pH-metre for at opnå nøjagtige pH-områder af syre eller base. Færdiglavede opløsninger eliminerer tid, omkostninger og kontamineringsrisici ved at blande buffere. pH-buffere kan bruges til at identificere svag syre, konjugeret base, stærk syre, blodets pH osv. Med både farvede og farveløse pH-bufferoptioner kan forskere effektivt vælge den korrekte indikatoropløsning til enhver test. Pulverposer og pakker giver laboratorier mulighed for at opbevare de koncentrerede stoffer i længere tid uden at blive påvirket.

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

Supplier: Merck

Materialer til præcis kalibrering og kontrol af pH-instrumenter.

Expand 27 Items

Standardreferencematerialer og bufferopløsninger, CertiPUR®, Supelco®

Supplier: Merck

Materialer til præcis kalibrering og kontrol af pH-instrumenter.

Expand 11 Items

Buffer, di-Sodium hydrogen phosphate solution 0,066 M, pH 9,2, Supelco®

Supplier: Merck

Buffer stock solution 1/15 mol/l

Expand 1 Items

Buffer solutions, Certipur®, ready to use, 1 litre bottles, Supelco®

Supplier: Merck

Materialer til præcis kalibrering og kontrol af pH-instrumenter.

Expand 4 Items

Buffer solutions, Certipur®, colour coded, Supelco®

Supplier: Merck

Materialer til præcis kalibrering og kontrol af pH-instrumenter.

Expand 12 Items

Reagents for complexometric titration with EDTA, Supelco®

Supplier: Merck

Ammonium buffer solution for complexometry (ammonium chloride/ammonia) pH = 10 - 11, TitriPUR®

Expand 1 Items

Buffers, concentrated solutions, Titrisol®, Supelco®

Supplier: Merck

Titrisol® buffer concentrate for 500 ml buffer solution [20 °C].

Expand 18 Items

Buffer solutions in sachets, Certipur®, Supelco®

Supplier: Merck

Til kalibrering af pH-metre.

Expand 12 Items

pH buffers, colour coded, reference standards, Supelco®

Supplier: Merck

pH Buffer solution, colour coded, pH-værdi: 7,00, ±0,01, Referencetemperatur: 25 °C, gul, I dispenser, 1×gallon

Expand 7 Items

Buffer solutions, ready to use, referenced at 25 °C, Certipur®

Supplier: Merck

Materials for the precise calibration and monitoring of pH meters.

Expand 25 Items

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.

Expand 6 Items

VWR®, Buffer, ammonia solution, pH 10 ready to use

Supplier: VWR Chemicals

Ideal for hardness of water determination.

Expand 1 Items

VWR®, pH buffer capsules

Supplier: VWR Chemicals

pH buffer capsules, Capsules, pH-værdi: 4,01, ±0,02, VWR®, orange, Plastflaske, 5 plastic tubes, 10 capsules/tube

Expand 2 Items

VWR® AVS TITRINORM, bufferopløsninger, 20 °C

Supplier: VWR Chemicals

Solutions prepared from AnalaR® NORMAPUR® grade analytical reagents.

Expand 53 Items

J.T.Baker® DILUT-IT™, Buffer Solutions, Concentrate

Supplier: Avantor

Volumetric concentrate, for dilution to 500 ml.

Expand 2 Items

J.T.Baker® BAKER ANALYZED®, Buffer Solutions

Supplier: Avantor

Ready-to-use pH buffers are manufactured in large lots to stringent specifications and utilise quality control procedures to reduce lot-to-lot variability. You can eliminate the time and expense of preparation and standardisation of solutions, helping streamline high-volume analytical work in applications such as quality control.