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™ HBSS, no calcium, no magnesium, no phenol red
Hanks' Balanced Salt Solution (HBSS) 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.
HYDRANAL™ - Coulomat Oil, Reagent for coulometric KF titration in oils (anolyte solution), preferred for cells with diaphragm, Honeywell Fluka™
Anolyte for coulometric Karl Fischer titration in oils (chloroform-methanol-xylene-based), preferred for cells with diaphragm
Invitrogen™ PBS (Phosphate-Buffered Saline) Tablets
Phosphate-buffered saline (PBS) is a balanced salt formulation used for a variety of cellular applications.
Gibco™ CTS™ DPBS, calcium, magnesium
Gibco Cell Therapy Systems DPBS CTS™ is the classical Dulbecco's Phosphate Buffered Saline which contains calcium, magnesium but no phenol red.
Gibco™ DPBS, calcium, 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.
HYDRANAL™-Sodium tartrate dihydrate, Honeywell Fluka™
Test substance for volumetric Karl Fischer titration (water content ∼15.66%, exact value on report of analysis)
Gibco™ CTS™ DPBS, calcium, magnesium, bag format
Gibco Cell Therapy Systems (CTS) DPBS is the classical Dulbecco's phosphate buffered saline, which is a balanced salt solution used for a variety of cell culture applications.
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.
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.
Invitrogen™ Tris (1 M), pH 8.0, RNase-free
Invitrogen Molecular biology grade, 1M Tris, pH 8.0 solution is supplied in one bottle. The buffer is certified RNase-free, economical, and ready-to-use.