| A | B |
|---|
| What prevents the formation of formalin pigment? | Buffer |
| What pH should the buffer be to precent formalin pigment | 7 |
| What does PEL stand for | Permissible exposure limit |
| What is the PEL of formaldehyde for over 8 hours | .75 ppm |
| What is STEL | Short term exposure limit |
| What is the STEL of formaldehyde for any 15 minute period | 2.0 ppm |
| What is acidophilic | Parts of tissue that are basic; they like acid dyes |
| What picric acid fixatives decalcify as they fix | PFF and Hollande solution |
| When do you get a formation of chromic oxide | When using potassium dichromate as a fixative |
| How do you prevent the formation of chromic acid | by washing thoroughly with water |
| What component attaches to some lipids rendering them insoluble in lipid solvents | Chromium |
| HCHO is the chemical formula for | formaldehyde |
| CHO CHO is the chemical formula for | Glutaraldehyde |
| Formaldehyde is an excellent fixative for | Lipids during frozen sectioning |
| 10% formalin is composed of? | 1 volume formalin; 9 volume H2O |
| What fixative's mechanism of action is crosslinking with proteins | Formalin |
| What are the fixatives of choice when preserving phospholipids | Bakers Calcium, formalin calcium |
| Zamboni PAF is | the electron microscopy fixative that is stable at room temperature |
| Reduction | Loss of oxygen |
| fixative of choice for Pheochromocytomas | Orth |
| K2Cr2O7 is the chemical formula for | Potassium Dichromate |
| Formalin is | excellent for lipids during frozen sectioning |
| Purpose of using NBF vs. unbuffered formalin | purpose of using neutral buffered formalin vs. unbuffered formalin |
