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Biological Buffers
 Biological buffers, introduced by Good, et.
al. in 1966, are widely used in biotechnology, cell biology and molecular biology
applications. These buffers were well received by the research community because
"Good" buffers are nontoxic, easy to purify and their pKa is typically between
6.0 and 8.0, the range at which most biological reactions occur. The "Good"
buffers also feature minimal penetration of membranes, minimal absorbance in the 240-700
nm range and minimal effects due to salt, concentration or temperature.
Mallinckrodt offers a complete line
of buffer products. For common buffers (sodium acetate, boric acid, potassium phosphate,
and others), please refer to our on-line catalog.
Our GenAR biological buffers feature
high assay, low heavy metals, low insolubles and nuclease and protease testing.
Biological Buffers
| Description |
Size * |
Product
Number |
| ACES, GenAR |
100 g, 500 g |
V287 |
| HEPES, Free Acid |
25 g, 250 g, 2.5 kg, 12 kg |
7745 |
| HEPES, Sodium Salt, GenAR |
25 g, 250 g, 10 kg |
V165 |
| MES, GenAR |
25 g, 100 g |
V172 |
| MOPS, GenAR |
25 g, 250 g, 10 kg |
V087 |
| MOPS, Sodium Salt, GenAR |
100 g, 500 g, 10 kg | V289 |
| PIPES, Free Acid, GenAR |
100 g, 500 g |
V249 |
| PIPES, Monosodium Salt, GenAR |
100 g, 500 g |
V248 |
| TRIS, GenAR |
500 g, 2.5 kg, 5 kg, 10 kg, 12 kg |
7732 |
| Tris Hydrochloride, GenAR |
500 g, 2.5 kg, 12 kg |
H590 |
* Additional sizes available.
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