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
Traceable™ Conductivity Calibration Standards Certified Reference Material (CRM), NIST tested, Fisherbrand™
Use NIST-traceable reference materials for the highest accuracy available. Traceable™ Conductivity Calibration Standards Certified Reference Material (CRM) offer easy calibration with included instructions and temperature chart.
Traceable™ One-Shot™ Conductivity Calibration Standards Certified Reference Material Producer (CRM), Fisherbrand™
Ideal for lab or field applications
HYDRANAL™ - Water Standard 1.0, Standard for Karl Fischer titration (water content 1 mg/g = 0.1%), verified against NIST SRM 2890 & NMIJ CRM 4222, Honeywell™ Fluka™
Molecular Formula: C7H8O Molecular Weight (g/mol): 108.14 MDL Number: MFCD00007941 InChI Key: RDOXTESZEPMUJZ-UHFFFAOYSA-N Synonym: Methoxybenzene,Methyl phenyl ether PubChem CID: 7519 ChEBI: CHEBI:16579 IUPAC Name: anisole SMILES: COC1=CC=CC=C1
HYDRANAL™ - Water Standard 0.1, Standard for Karl Fischer titration (water content 0.1 mg/g = 0.01%), verified against NIST SRM 2890 & NMIJ CRM 4222, Honeywell™ Fluka™
Molecular Formula: C8H10 Molecular Weight (g/mol): 106.17 MDL Number: MFCD00008519 InChI Key: CTQNGGLPUBDAKN-UHFFFAOYSA-N IUPAC Name: 1,2-xylene SMILES: CC1=CC=CC=C1C
Amino Acid Standard, Analytical Standard, MilliporeSigma™ Supelco™
Amino acids in this standard are 2.5 mumoles per mL in 0.1 N HCl, except L-cystine at 1.25 mumoles per mL.
TAN Standard (Certified), Fisher Chemical
CAS: 79-09-4 Molecular Formula: C3H6O2 Molecular Weight (g/mol): 74.079 MDL Number: MFCD00212734 InChI Key: XBDQKXXYIPTUBI-UHFFFAOYSA-N PubChem CID: 1032 ChEBI: CHEBI:30768 IUPAC Name: propanoic acid SMILES: CCC(=O)O
Thermo Scientific Chemicals Iodine, 0.01N Standardized Solution
CAS: 7553-56-2 | I2 | 253.81 g/mol
Thermo Scientific Chemicals Iodine, 0.1N Standardized Solution
CAS: 7553-56-2 Molecular Formula: I2 Molecular Weight (g/mol): 253.81 MDL Number: MFCD00011355 MFCD00164163 InChI Key: PNDPGZBMCMUPRI-UHFFFAOYSA-N PubChem CID: 807 ChEBI: CHEBI:17606 SMILES: II
Chiron Sulfonylglycine Standards
PFAS testing can be highly challenging which is why we make it easier with our convenient portfolio of PFAS reference materials. Advance environmental and health safety with standards you can trust.
Hexatriacontane, Standard for GC Analytical Standard, MilliporeSigma™ Supelco™
1-Hexene can undergo bio-oxidation to form 5-hexen-1-ol, which can undergo further oxidation to yield 5-hexenoic acid. It also finds applications as a co-monomer in the production of polyethylene.
Amino Acid Standards, Physiological, Analytical Standard, Acidics and Neutrals, MilliporeSigma™ Supelco™
Amino acids listed are 2.5 mumoles per mL except L-cystine at 1.25 mumoles per ml.
Chiron Sulfonamide Standards
PFAS testing can be highly challenging which is why we make it easier with our convenient portfolio of PFAS reference materials. Advance environmental and health safety with standards you can trust.
Thermo Scientific™ Orion™ Conductivity Standards and Solutions
Perform virtually any electrochemistry analysis with these conductivity standards and solutions. All conductivity standards are traceable to NIST™ standard reference materials.
Thermo Scientific™ Orion™ ISE Calibration Standards
Take reproducible ISE measurements with Thermo Scientific™ Orion™ ISE Calibration Standards. For use with ion selective electrodes from ammonia to water hardness.