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
Gibco™ DPBS, no calcium, no magnesium
Dulbecco's Phosphate-Buffered Saline (DPBS) is a balanced salt solution used for a variety of cell culture applications, such as washing cells before dissociation, transporting cells or tissue, diluting cells for counting, and preparing reagents.
Gibco™ PBS, pH 7.4
Gibco PBS, pH 7.4, is a balanced salt solution ideal for cell culture applications. It lacks calcium, magnesium, and phenol red, preventing cell adhesion and assay interference. Trusted for quality, Gibco PBS ensures reliable results in cell washing, transport, and reagent preparation.
HYDRANAL™-Sodium tartrate dihydrate, Honeywell Fluka™
Test substance for volumetric Karl Fischer titration (water content ∼15.66%, exact value on report of analysis)
Honeywell Chemicals HYDRANAL™-Solvent, Medium for volumetric two-component Karl Fischer titration (methanol-based), Fluka, Honeywell
Molecular Formula: O2S Molecular Weight (g/mol): 64.06 InChI Key: RAHZWNYVWXNFOC-UHFFFAOYSA-N IUPAC Name: (oxo-λ⁴-sulfanylidene)oxidane SMILES: O=S=O
HYDRANAL™ - Methanol Rapid, Reagent for accelerated volumetric one-component KF titration (working medium), Honeywell Fluka™
Medium for accelerated volumetric one-component Karl Fischer titration.
Thermo Scientific™ Orion™ pH Buffer Cubitainers™
Hold 5 gallons (19L) of pH buffer in color-coded Thermo Scientific™ Orion™ pH Buffer Cubitainers™ with easy-pour spigot.
Gibco™ DPBS, powder, no calcium, no magnesium
Dulbecco's Phosphate-Buffered Saline (DPBS) is a balanced salt solution used for a variety of cell culture applications, such as washing cells before dissociation, transporting cells or tissue, diluting cells for counting, and preparing reagents.
Gibco™ DPBS (10X), no calcium, no magnesium
Dulbecco's phosphate-buffered saline (DPBS) is a balanced salt solution used for a variety of cell culture applications, such as washing cells before dissociation, transporting cells or tissue samples, diluting cells for counting, and preparing reagents.
Gibco™ PBS (10X), pH 7.2
Phosphate-buffered saline (PBS) is a balanced salt solution that is used for a variety of cell culture applications, such as washing cells before dissociation, transporting cells or tissue samples, diluting cells for counting, and preparing reagents.
METTLER TOLEDO Buffer Solution, pH 10.00, Color-Coded Blue, Mettler Toledo™
METTLER TOLEDO™ solutions for electrode calibration and care.