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Buffers and Standards

Buffers and Standards

Hydrogen ion buffers comprising a mixture of a weak acid and its conjugate base or vice-versa and used to stabilize pH; also diluents, washing solutions, and standard-value solutions used for a broad array of scientific calibration purposes.

The buffers used to calibrate pH meters may be certified and/or traceable to the National Institute of Standards and Technology (NIST). These buffers may also be color-coded for easy identification:

  • Red: pH 4.0
  • Yellow: pH 7.0
  • Blue: pH 10.0

 

Chromatography Standards (4,116)
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1 – 15 of 9,578 results
1

Gibco™ HEPES, 1M Buffer Solution
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HEPES, 1M Buffer Solution

EDGE
Absorbance UV light
Packaging 1 Each
Physical Form Liquid
pH 7.2 to 7.5
Certificate of Analysis FDA, ISO 13485 standards
Chemical Name or Material HEPES buffer
Concentration 1 M
For Use With (Application) Mammalian cell culture
3

Buffer solution pH 7, Phosphate buffer, traceable to NIST, ready to use, Thermo Scientific Chemicals

Promotions are available
EDGE
Name Note Phosphate buffer, traceable to NIST, ready to use
CAS 7647-14-5
MDL Number MFCD03097944
Solubility Information Solubility in water: miscible.
Chemical Name or Material Buffer solution pH 7
Density 1.0000g/mL
Specific Gravity 1
4

Buffer solution pH 4, Citrate buffer, Thermo Scientific Chemicals

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EDGE
Name Note Phthalate buffer
CAS 7732-18-5
MDL Number MFCD00130806
Color Colorless
Traceability to NIST Traceable to NIST
Packaging Plastic bottle
Physical Form Liquid
pH 3.98 to 4.02 (20°C)
Chemical Name or Material Buffer solution pH 4
Molecular Formula C8H5KO4
Formula Weight 204.23
5

pH Buffer Sachets, METTLER TOLEDO™
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6

Technical pH Buffer Solutions, METTLER TOLEDO™
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Provides a reliable all-around pH buffer. Mettler Toledo™ Technical pH Buffer Solution are specified to two decimal places and are traceable to NIST standards. Color-coded solution comes in a handy 250mL plastic bottle with no-fuss labels.

Promotions are available
EDGE
For Use With (Equipment) pH Electrode
Traceability to NIST Yes
Quantity 250 mL
Grade Technical
For Use With (Application) pH measurement, electrode calibration
10

Technical Buffer Solution pH 4.01, Mettler Toledo™
GREENER_CHOICE

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EDGE
11

Technical Buffer Solution pH 7.00, Mettler Toledo™
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12

Buffer Colour Coded Solution pH10.00 (Borate) Blue, NIST Standard Solution ready to use for pH measurement, Fisher Chemical™

CAS: 10043-35-3 Molecular Formula: BH3O3 Molecular Weight (g/mol): 61.83 InChI Key: KGBXLFKZBHKPEV-UHFFFAOYSA-N IUPAC Name: boric acid SMILES: OB(O)O

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EDGE
CAS 10043-35-3
Molecular Weight (g/mol) 61.83
SMILES OB(O)O
IUPAC Name boric acid
InChI Key KGBXLFKZBHKPEV-UHFFFAOYSA-N
Molecular Formula BH3O3
14

Buffer Solution pH7.00 (Phosphate), NIST Standard Solution ready to use for pH measurement, Fisher Chemical™

MDL Number: 217672

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EDGE
MDL Number 217672
15

Technical Buffer pH 2, Mettler Toledo™
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