http://roguesci.org/megalomania/explo/DDNP.html

http://www.bluemud.org/article/11579

Would the synthesis in the second link work?

http://sci-toys.com/ingredients/sodium_nitrite.html

"Sodium nitrite is produced in the human body by the action of saliva on sodium nitrate,"

Would this be a good way to produce sodium nitrite?