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 (20,060)

Spectroscopy Standards (6,253)

General Chemistry Solutions (5,122)

Matrix Blanks and Standardization Solutions (4,255)

Life Science Buffers (3,780)

Electrochemistry Buffers (2,281)

Environmental Testing Standards (1,956)

Electrochemistry Standards (1,222)

Karl Fischer Buffers and Reagents (498)

Viscosity Standards (249)

Isotope Standards (226)

Quality Control and Proficiency Samples (212)

Kjeldahl Buffers and Reagents (108)

Gel Filtration Standards (60)

Matrix Modifiers (31)

Osmolality Standards (11)

Smoke Point Reference (7)

Polarimetric Standards (3)

Showing products from the Buffers and Standards category. View All Search Results

1 – 15 of 40,786 results

Ricca Chemical Company Buffer, Reference Standard, pH 4.00 ± 0.01 at 25°C (Color Coded Red), Ricca Chemical

Pricing & Availability
Specifications

Name Note	pH 4.00 ± 0.01 at 25 deg C (Color Coded Red)
CAS	7732-18-5
For Use With (Equipment)	pH Meter and Electrode
Physical Form	Liquid
pH	4
CAS Min %	0.99
Chemical Name or Material	Buffer, Reference Standard
Concentration	1X
For Use With (Application)	Calibration
Solution Type	Colored pH Buffer
CAS Max %	1.03

Invitrogen™ TBE (10X), RNase-free

Molecular biology grade, Invitrogen 10X TBE solution is supplied in four bottles containing 1 L each. The buffer is certified RNase-free, economical, and ready-to-use.

Pricing & Availability
Specifications

Chemical Name or Material	Running Buffer
Grade	Molecular Biology
Recommended Storage	Store at room temperature.
Concentration	10X
Product Line	Ambion

Fisher Scientific Assorted pH Buffer Pouches, Fisherbrand™

Economical, accurate, convenient

Pricing & Availability

Invitrogen™ TAE (10X), RNase-free

Molecular biology grade, Invitrogen 10X TAE is supplied in a 1 L bottle. The buffer is certified RNase-free, economical, and ready-to-use.

Pricing & Availability

Promotions Available

Fisher Scientific Buffer Solution, pH 10.00, Color-Coded Blue (Certified), Fisher Chemical PROMO

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Promotions Available

Fisher Scientific Buffer Solution, pH 4.00, Color-Coded Red (Certified), Fisher Chemical PROMO

pH/temperature conversions given on label.

Pricing & Availability

Ricca Chemical Company Buffer, Reference Standard, pH 7.00 ± 0.01 at 25°C (Color Coded Yellow), Ricca Chemical

Pricing & Availability
Specifications

CAS	7732-18-5
For Use With (Equipment)	pH Meter and Electrode
Physical Form	Liquid
pH	7
CAS Min %	0.48
Chemical Name or Material	Buffer, Reference Standard
Concentration	1X
For Use With (Application)	Calibration
Solution Type	Colored pH Buffer
CAS Max %	0.5

Invitrogen™ TE, pH 8.0, RNase-free

Invitrogen molecular biology grade, TE, pH 8.0 solution is supplied in one bottle containing 500 mL. The buffer is certified RNase-free, economical, and ready-to-use.

Pricing & Availability
Specifications

Packaging	Bottle
Physical Form	Liquid
pH	8.0
Recommended Storage	Store at room temperature.
Product Line	Ambion

Ricca Chemical Company Buffer, Reference Standard, pH 11.00 ± 0.01 at 25°C, Ricca Chemical

Pricing & Availability
Specifications

For Use With (Equipment)	pH Meter and Electrode
Physical Form	Liquid
pH	11
CAS Min %	0.11
Concentration	1X
For Use With (Application)	Calibration
Solution Type	pH Buffer
CAS Max %	0.11

Traceable™ pH Buffer Standards, Certified Reference Material (CRM), Fisherbrand™

IUPAC formulation

Pricing & Availability
Specifications

For Use With (Equipment)	Instruments and Electrodes
Traceability to NIST	Traceable to NIST
Physical Form	Liquid
Chemical Name or Material	pH Buffer Standards
Grade	Certified
Purity Grade Notes	Accuracy at 25°C is ±0010pH
For Use With (Application)	Calibration
ChemAlert Storage Symbol	Gray
Solution Type	Buffer

MilliporeSigma Supelco DL-Dithiothreitol Solution 1M in H2O, MilliporeSigma™ Supelco™

Pricing & Availability

Promotions Available

Fisher Scientific Buffer Solution, pH 7.00, Color-Coded Yellow (Certified), Fisher Chemical PROMO

CAS: 7778-77-0.

Pricing & Availability

Ricca Chemical Company Buffer, Reference Standard, pH 10.00 ± 0.01 at 25°C (Color Coded Blue), Ricca Chemical

Pricing & Availability
Specifications

Boiling Point	100°C
Color	Blue
Physical Form	Liquid
CAS Min %	0.39
Chemical Name or Material	Buffer, Reference Standard
Concentration	1X
For Use With (Application)	Calibration
Name Note	pH 10.00 ± 0.01 at 25 deg C (Color Coded Blue)
CAS	7732-18-5
For Use With (Equipment)	pH Meter and Electrode
Solubility Information	Miscible
pH	10
DOT Information	Not Regulated by DOT
Solution Type	Colored pH Buffer
CAS Max %	0.41
Melting Point	0°C

Ricca Chemical Company Conductivity Standard, 1413 μS/cm at 25°C, Ricca Chemical

Pricing & Availability
Specifications

Boiling Point	100°C
Type	Conductivity Standard
Color	Colorless
pH	6.7 to 7.3
Physical Form	Liquid
Chemical Name or Material	Conductivity Standard
Odor	Odorless
Solution Type	Conductivity Standard

Ricca Chemical Company Conductivity Standard, 10 μS/cm at 25°C (4.7 ppm TDS as NaCl), Ricca Chemical

Pricing & Availability
Specifications

Boiling Point	100°C
Solubility	Completely miscible
Color	Colorless
Physical Form	Liquid
CAS Min %	5.0E-4
Chemical Name or Material	Conductivity Standard
Type	Conductivity Standard
Name Note	10μS/cm (10μmho/cm) at 25°C
Concentration or Composition (by Analyte or Components)	4.7 ppm as NaCl
CAS	7732-18-5
pH	6.7 to 7.3
DOT Information	Not Regulated by DOT
Shelf Life	12 months
Solution Type	Conductivity Standard
Melting Point	0°C
CAS Max %	5.0E-4

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Buffers and Standards

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Ricca Chemical Company Buffer, Reference Standard, pH 11.00 ± 0.01 at 25°C, Ricca Chemical Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Ricca Chemical Company Conductivity Standard, 10 μS/cm at 25°C (4.7 ppm TDS as NaCl), Ricca Chemical Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Ricca Chemical Company Buffer, Reference Standard, pH 11.00 ± 0.01 at 25°C, Ricca Chemical

Ricca Chemical Company Conductivity Standard, 10 μS/cm at 25°C (4.7 ppm TDS as NaCl), Ricca Chemical