how to trap for the quote key

[Kurt Kaufman]

In the case of the comma key, the following works:
...
case ","
     Do "say " &quote& "comma" &quote& " using " &quote& selVoice &quote 
as Applescript
     break
...
But how do I trap the " key for the same purpose?
quote"quote obviously isn't the solution.

Thanks, Kurt