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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 (4,044)
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Kjeldahl Buffers and Reagents (15)
Quality Control and Proficiency Samples (10)
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1 – 15 of 9,508 results
1

Conductivity Standards for METTLER TOLEDO Conductivity Probes, METTLER TOLEDO™
GREENER_CHOICE

Recommended NIST traceable solutions for calibrating or verifying METTLER TOLEDO conductivity electrodes.

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Type Conductivity Standard
For Use With (Equipment) Conductivity Electrodes
Recommended Storage Ambient
Solution Type Conductivity Standard
2

TPL 10 Trace Model Buffer Solution pH 10.1, WTW™

EDGE
4

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
6

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

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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
7

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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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
9

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
10

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

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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
11

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
12

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
13

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

MDL Number: 217672

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MDL Number 217672
14

Buffer Tablets, pH 4 (Phthalate), for pH measurement, to make-up volume of 100ml, Fisher Chemical™

Buffer Tablets, pH 4 (Phthalate), for pH measurement, to make-up volume of 100ml, Fisher Chemical, White, Packaging: Glass Jar, Quantity: 50 tablets, MDL Number: 81857, Physical Form: Solid

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15

Gibco™ PBS, pH 7.4 (flow cytometry grade)

Phosphate-Buffered Saline (PBS) is a balanced salt solution used for a variety of applications, including reagent preparation, diluting cells for flow cytometry and as a cell culture reagent.

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