[Histonet] formalin pigment and 10% NBF question

2014-08-07 Thread Cecilia A.
Hi everyone, As I read and was told, formalin pigment is seen as a dark precipitate under light microscope. I also read that you can see this via polarizing microscope as it is birifringent. I'm wondering: does it first need to be seen under the light microscope, and birifringence is just a confir

Re: [Histonet] Formalin pigment?

2009-12-31 Thread Rene J Buesa
Oluwatosin Subject: [Histonet] Formalin pigment? To: histonet@lists.utsouthwestern.edu Date: Wednesday, December 30, 2009, 7:56 PM Hello, please i am working effects of various concentration of formaldehyde on liver tissue. The sections shows some degree of formalin pigmentation form 20 to 35% and

[Histonet] Formalin pigment?

2009-12-30 Thread Adeluwoye Oluwatosin
Hello, please i am working effects of various concentration of formaldehyde on liver tissue. The sections shows some degree of formalin pigmentation form 20 to 35% and concentrated formaldehyde. Can anyone ofer advise as to how to quantittate o judge the varying degree of pigmentation? Tosin _