## Introduction- The Malpighlan tubules of insects were first described more than four centuries ago and have been recognized as the primary organs of excretion for nearly two. In the last fifty years they have been the subject of considerable interest because of their prodigious capacity for flui
The use of potassium ferricyanide in neural fixation
β Scribed by Langford, Lauren A. ;Coggeshall, Richard E.
- Publisher
- John Wiley and Sons
- Year
- 1980
- Tongue
- English
- Weight
- 768 KB
- Volume
- 197
- Category
- Article
- ISSN
- 0003-276X
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β¦ Synopsis
Abstract
The present study suggests a mixture of buffered osmic acid and 1.5% potassium ferricyanide as a postβfixation to improve the fixation of neural tissue. This procedure results in an improved preservation of membranes as well as cytoplasm and cytoplasmic organelles. It is to be emphasized that the quality of the initial perfusion is the primary determinant of quality of the fixation, but the addition of 1.5% potassium ferricyanide to postβfixation fluid makes good fixation better and allows data to be gathered from otherwise unusable material.
π SIMILAR VOLUMES
A temperature dependence of crystal fields in K3Fe(CN)6 has been found which explains both data on tcmpcnture variation of quadrupolc interaction and paramagnetic anisotropy, consistently, in the temperature range 90-300Β°K.
## Abstract Simultaneous fixation was investigated for a marine organism: the monogenean flatworm ectoparasite __Merizocotyle icopae__. Four protocols for primary fixation were compared: 3% glutaraldehyde alone in 0.1M cacodylate buffer for a minimum of 2 hours; 1% glutaraldehyde in combination wit