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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 (4,129)
Spectroscopy Standards (2,587)
Matrix Blanks and Standardization Solutions (1,791)
Life Science Buffers (1,305)
Electrochemistry Buffers (1,056)
General Chemistry Solutions (746)
Environmental Testing Standards (460)
Electrochemistry Standards (363)
Viscosity Standards (260)
Karl Fischer Buffers and Reagents (254)
Osmolality Standards (17)
Kjeldahl Buffers and Reagents (13)
Quality Control and Proficiency Samples (12)
Isotope Standards (4)
Matrix Modifiers (4)

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1 – 15 of 9,608 results
3

HYDRANAL™-Water Standard KF-Oven, 150-160°C, Honeywell Fluka™

Standard for Karl Fischer oven check (water content ∼5.0%, exact value on report of analysis)

4

Technical pH Buffer Solutions, METTLER TOLEDO™
GREENER_CHOICE

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
5

Tris Buffered Saline Tablets, pH 7.6, Medicago

Supplied as exactly pre-weighed tablets. Medicago Tris Buffered Saline Tablets, pH 7.6 gives 500ml of 1x solution with 0.05M Tris-HCl buffer and 0.15M sodium chloride. Manufactured in ISO 9001 and 13485 certified facilities.

EDGE
6

Gibco™ PBS, pH 7.2
GREENER_CHOICE

PBS, pH 7.2

EDGE
Dilution 1 X
Content And Storage 15°to 30°C
Additive No Sodium Pyruvate
Form Liquid
Product Type Phosphate Buffered Saline (PBS)
pH 7.2
Shelf Life 36 Month(s)
For Use With (Application) Mammalian Cell Culture
Osmolality 280 to 320 mOsm/kg
7

Iodine Solution 0.05M (0.1N), NIST Standard Solution Ready To Use, for Volumetric Analysis, meets analytical specification of Ph.Eur., BP, Fisher Chemical™

CAS: 7553-56-2 Molecular Formula: I2 Molecular Weight (g/mol): 253.81 MDL Number: MFCD00011355 MFCD00164163 InChI Key: PNDPGZBMCMUPRI-UHFFFAOYSA-N Synonym: iodine,diiodine,iodine crystals,iodine sublimed,tincture iodine,vistarin,eranol,iodio,iodine solution,iode PubChem CID: 807 ChEBI: CHEBI:17606 IUPAC Name: molecular iodine SMILES: II

PubChem CID 807
CAS 7553-56-2
Molecular Weight (g/mol) 253.81
ChEBI CHEBI:17606
MDL Number MFCD00011355 MFCD00164163
SMILES II
Synonym iodine,diiodine,iodine crystals,iodine sublimed,tincture iodine,vistarin,eranol,iodio,iodine solution,iode
IUPAC Name molecular iodine
InChI Key PNDPGZBMCMUPRI-UHFFFAOYSA-N
Molecular Formula I2
9

Gibco™ PBS (10X), pH 7.4
GREENER_CHOICE

PBS (10X), pH 7.4

EDGE
Regulatory Status For in-vitro diagnostic use
Dilution 10 X
Content And Storage 15°to 30°C
Form Liquid
Product Type Phosphate Buffered Saline (PBS)
Capacity 500 mL
pH 7.3 to 7.5
Shelf Life 36 Month(s)
For Use With (Application) Mammalian Cell Culture
Osmolality 2800 to 3100 mOsm/kg
10

Gibco™ DPBS, calcium, magnesium
GREENER_CHOICE

DPBS, calcium, magnesium

EDGE
Regulatory Status For in-vitro diagnostic use
Dilution 1 X
Content And Storage 2° to 8°C
Additive No Sodium Pyruvate
Form Liquid
Product Type DPBS
pH 7 to 7.2
Shelf Life 36 Month(s)
For Use With (Application) Mammalian Cell Culture
11

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
12

Gibco™ DPBS (10X), no calcium, no magnesium
GREENER_CHOICE

DPBS (10X), no calcium, no magnesium

EDGE
Dilution 10 X
Content And Storage 15°to 30°C
Additive No Sodium Pyruvate
Form Liquid
Product Type DPBS
pH 6 to 7
Shelf Life 36 Month(s)
For Use With (Application) Mammalian Cell Culture
Osmolality 2500 to 2900 mOsm/kg
13

Hydrogen Peroxide 6% (w/v) (20 Volumes), Extra Pure SLR, Fisher Chemical™

CAS: 7722-84-1 Molecular Formula: H2O2 Molecular Weight (g/mol): 34.014 MDL Number: 11333 InChI Key: MHAJPDPJQMAIIY-UHFFFAOYSA-N Synonym: oxydol,perhydrol,superoxol,interox,hydrogen dioxide,inhibine,peroxaan,albone,hioxyl,kastone PubChem CID: 784 ChEBI: CHEBI:16240 IUPAC Name: hydrogen peroxide SMILES: OO

Promotions are available
EDGE
PubChem CID 784
CAS 7722-84-1
Molecular Weight (g/mol) 34.014
ChEBI CHEBI:16240
MDL Number 11333
SMILES OO
Synonym oxydol,perhydrol,superoxol,interox,hydrogen dioxide,inhibine,peroxaan,albone,hioxyl,kastone
IUPAC Name hydrogen peroxide
InChI Key MHAJPDPJQMAIIY-UHFFFAOYSA-N
Molecular Formula H2O2
14

Gibco™ HEPES, 1M Buffer Solution
GREENER_CHOICE

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
15

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

MDL Number: 217672

Promotions are available
EDGE
MDL Number 217672