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What is the most common fixative used in haematology?
methyl alcohol
What is the purpose of methyl alcohol in Leishman's stain?
It acts as a fixative and fixes the cells
Can you oil paint over workable fixative that has been sprayed over charcoal?
Yes, you can. Use workable fixative or retouch varnish.
What causes immediate cell death?
Putting a living cell into fixative like FAA or 3 : 1 causes immediate cell death and at whatsoever stage of nuclear division this cell is passing through get arrested
When was the Federal Alcohol Administration Act passed?
The Federal Alcohol Administration Act (FAA) was put into place at the end of Prohibition in 1933
Why use methanol to fix smear during giemsa staining?
because giemsa stain is a mixture of methyl acetate Eosin and azure b. it doesnot contain any fixative that is why we use methanol to fix smear during giemsa stain other stain like lieshman contain acetyl free methyl alcohol as a fixative so it does not need to fix slide stain with lieshman stain.
What is the use of Iodine in gram stains?
The iodine in the gram stain serves as a mordant or fixative.
How can you preserve a fish gonad sample?
Keep it refrigerated or preserve it in salt like they did in the olden days!
Does FAA regulations permit alcohol in checked baggage?
Typically alcohol is allowed in checked baggage as long as it is below a certain proof. I believe anything over 120 proof is not allowed.
What is the FAA?
FAA stands for the Federal Aviation Administration
What can you use to make a charcoal drawing more permanent?
Charcoal drawing can be made more permanent using a spray fixative. Most craft stores carry one or more brand-name of fixative. I recommend you try a test, using the spray on an unimportant scrap of paper with charcoal on it, as sometimes there is a change in colouration when using fixative and it is best to know what to expect.
What is Carnoy's fixative?
Fixatives are classified as coagulative fixatives and cross-linking fixatives. Carnoy's fixative is a coagulative fixative. Coagulative fixatives change the shape or structure of protein molecules without binding to them, while cross-linking fixatives bind chemically to protein molecules at one or more points. In cross-linking fixatives molecules are linked together to form an insoluble latticework by forming chemical bridges between protein chains. Carnoy's fixative is a coagulative fixative.
