Re: [Histonet] Re: Celestin blue B (was Help)

2011-11-07 Thread John Kiernan
Thanks Peggy for the helpful information about recent commercial haemalum substitutes. The MSDS for tango describes only an acidified solution of the dye (eriochrome cyanine R). This would need to be mixed with a ferric salt to make a blue nuclear stain. Iron-ECR is probably the best substitu

RE: [Histonet] Re: Celestin blue B (was Help)

2011-11-07 Thread Houston, Ronald
I believe Celestine Blue was used much more frequently in the UK in the 70s and 80s, preferred to an iron hematoxylin, in many "trichrome" stains including Lendrum's MSB, as Peggy mentions; the nuclear staining withstanding further differentiation during the subsequent staining from either picri

Re: [Histonet] Re: Celestin blue B (was Help)

2011-11-06 Thread Tony Reilly
Hello I have used Celestin Blue-Haemalum (Mayers) considerably in the past as a substitute for Weigert's and as you say the Celestin Blue stain does not keep and is best made fresh for each use. Our method to simplify this was to make separate double strength solutions of the Celestin blue an

Re: [Histonet] Re: Celestin blue B (was Help)

2011-11-06 Thread Lee & Peggy Wenk
With the hematoxylin shortage of a couple of years ago (real, not imagined in about 2007-2008), several companies tried to come up with a synthetic dye substitute. A little background: Celestine blue (CI 51050, also known as Mordant blue 14) is a substitute touted many years ago (late 1960s/ea