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
Buffer Solution pH4.00 (Phthalate), NIST Standard Solution ready to use for pH measurement, Fisher Chemical™
MDL Number: 217672
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Buffer Solution pH10.00 (Borate), NIST Standard Solution ready to use for pH measurement, Fisher Chemical™
MDL Number: 217672
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Technical pH Buffer Solutions, METTLER TOLEDO™
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.
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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.
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)
Applied Biosystems™ Anode Buffer Container (ABC), for 3500/SeqStudio™ Flex
The Anode Buffer Container (ABC) contains 1X running buffer to support all electrophoresis applications on the Applied Biosystems 3500 and SeqStudio Flex series genetic analyzers.
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
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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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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