Re: [Histonet] RE: paraffin sections: white with airbubbles

2011-02-02 Thread amitapandey
another piece of fixed tissue , process it with standard paraffin processing protocol. Dr. Amita Dubey PCSED,TRC From: John Kiernan To: "Thomas, Nancy" Cc: "histonet@lists.utsouthwestern.edu" , 'An Eerdekens' Date: 02/02/11 12:28 PM Subject: Re: [Histonet] RE:

Re: [Histonet] RE: paraffin sections: white with airbubbles

2011-02-01 Thread John Kiernan
You can't go from 70% alcohol into paraffin without passing through 100% alcohol and then a clearing agent (liquid miscible with 100% alcohol and with melted wax). Xylene is a commonly used clearing agent. Your times in 50% and 70% alcohol are much longer than necessary. Even for a whale's hypot

[Histonet] RE: paraffin sections: white with airbubbles

2011-01-28 Thread Thomas, Nancy
Hi An, You did not mention a clearing step (xylene, or xylene substitute) between your alcohol and paraffin steps. Maybe you just forgot to write it, but if you actually missed this step, your samples would be improperly processed leading to the problems you have. Nancy Thomas Stowers Institut