[Histonet] Formaldehyde concentration assay

[Min-Han Tan]

Dear Histonet members,

I would like to evaluate our NBF and formaldehyde aliquots to ensure that
it is at 4%, 2% etc. I would guess I need an assay between 0 - 5%?

Does anyone know a quick chemical experiment to test this? I have access to
all common lab chemicals.

I can see that there are kits available e.g.
http://www.hannacan.com/PDF/manHI3838.pdf but I really don't need so many
tests; neither do I really need the ultrasensitive formaldehyde assays for
urine.

Your advice is appreciated - thanks!

Regards,
Min-Han