All of our ready-to-use buffers are:

- Conveniently packaged.

- Prepared fresh for each order.

- Economical and time-saving.

- Desired pH should be specified when ordering.

The buffer is a vehicle for the fixative and requires certain properties: 1-To maintain constant pH during the time of the fixation. The pH of the fixative in EM is adjusted using the buffer system chosen; e.g. range 6.5-8.0. 2-The ionic constitution to prevent the extraction of cellular components, or the deposition of precipitates of fixative chemicals.

Hanks' Balanced Salt Solution (HBSS) is composed of inorganic salts and supplemented with glucose. The solution may be used to wash cells and tissue and to maintain cells in a viable state. The solution is buffered with phosphate and maintains a physiological pH and osmotic pressure.