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
Thermo Scientific™ Orion™ pH Buffer Bottles
Perform accurate, reproducible pH calibrations with these color-coded buffer bottles.
Thermo Scientific Chemicals Luminol and oxidizing solutions (each bottle)
For chemiluminecent detection of HRP-based Western blotting systems
Thermo Scientific™ Orion™ Conductivity Conditioning Solution; 5 x 60 mL bottles
Perform virtually any electrochemistry analysis with these conductivity standards and solutions. All conductivity standards are traceable to NIST™ standard reference materials.
Matrix Blank - 15W40 Motor Oil with no Diesel Added, Bottled in a 100mL Wide Mouth Glass Bottle for Use with GC or IR.
VHG Labs offers ISO 17034 metallo-organic and aqueous inorganic certified reference materials for oil, fuel, and coolant analysis as well as a variety of certified standards for environmental, pharmaceutical, and industrial applications
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.
Conductivity Standards for METTLER TOLEDO Conductivity Probes, METTLER TOLEDO™
Recommended NIST traceable solutions for calibrating or verifying METTLER TOLEDO conductivity electrodes.
Buffer Colour Coded Solution pH7.00 (Phosphate) Yellow, NIST Standard Solution ready to use for pH measurement, Fisher Chemical™
CAS: 7778-77-0 Molecular Formula: H2KO4P Molecular Weight (g/mol): 136.08 InChI Key: GNSKLFRGEWLPPA-UHFFFAOYSA-M IUPAC Name: potassium dihydrogen phosphate SMILES: [K+].OP(O)([O-])=O
Traceable™ ISO 17034 (formerly ISO Guide 34) Color-Coded CRM pH Buffers (Certified Reference Material), Fisherbrand™
Performs accurate, reproducible pH calibrations with color-coded bottles. Fisherbrand™ Traceable, Color-Coded buffers are Certified Reference Material pH Buffers.Compatible with all makes of pH instruments and electrodes.
Tris-HCl, 1M Solution, pH 8.0, Molecular Biology Grade, Ultrapure
CAS: 1185-53-1 Molecular Formula: C4H12ClNO3 Molecular Weight (g/mol): 157.594 InChI Key: QKNYBSVHEMOAJP-UHFFFAOYSA-N PubChem CID: 93573 IUPAC Name: 2-amino-2-(hydroxymethyl)propane-1,3-diol;hydrochloride SMILES: C(C(CO)(CO)N)O.Cl