RE: [Histonet] Masson's tri-chrome specificity

2009-10-24 Thread Lee & Peggy Wenk
Try extending the time in Bouins. Tendon is rather dense, and may need longer time in the post-mordant. 60 degrees C for 1 hour, with a good 5-10 minute wash in running water afterwards, to remove all the yellow. The same with the phosphotungstic acid rinse between the red and blue dyes. Make it 5

[Histonet] Floors

2009-10-24 Thread Thomas Jasper
My thanks to everyone for their input about cleaning lab floors. Much appreciated. Tom J. Thomas Jasper HT (ASCP) BAS Histology Supervisor Central Oregon Regional Pathology Services Bend, Oregon 97701 541/693-2677 tjas...@copc.net ___ Histonet mailin

RE: SPAM-LOW: [Histonet] RE: Granzyme b and F4/80

2009-10-24 Thread Patsy Ruegg
Jennifer, Your NS background could be coming from endogenous biotin. I use the rat anti ms F4/80 on ffpe mouse tissue all the time and it is very clean but I use a labeled polymer detection system rather than AB. I use rat on mouse hrp or ap labeled polymer detection from BioCare, or I use my ow

[Histonet] Re: Xylene Substitute

2009-10-24 Thread Robert Richmond
Sheila Hass at Micro Path Laboratories [where?} asks: >>Could someone recommend a xylene substitute and mounting media to use for staining and coverslipping (no vendors please)? I am considering processing without xylene, and would like to discontinue it everywhere if possible.<< We've discussed t

[Histonet] Cleanliness at the Grossing Bench(was Floaters in Waterbath)

2009-10-24 Thread Robert Richmond
It's really important to clean up as you go, when you gross tissues. An overworked Pathologist's Assistant (PA) - who never sees the slides - can carry over an awful lot of tissue and not realize the problem that creates. By ancient custom one may only have one of each kind of tool - scalpel, scis

AW: [Histonet] Masson's tri-chrome specificity

2009-10-24 Thread Gudrun Lang
Jennifer, I don't think, that you can substitute Biebrich Scarlett with Eosin. These dyes have a different chemistry. That is well described on Bryan Llewellyn's website: http://stainsfile.info/StainsFile/stain/trichindex.htm The staining of collagen is also a matter of differentiation of the dyes