If you've got the required sensitivity for a photometrical measurement
OPT301 from Burr-Brown is a good choice for detector ( unless your option
will be a Hamamatsu 1024 photodiode array and against a colorimeter
tehnique you'll like a spectrophotometer one )
Vasile


On Mon, 26 Feb 2001, Alice Campbell wrote:

> ouch, Josef, a little brain fade there,
>
> shoulda said ammonia, and use a methyl orange end point and
> read it photometrically with a pic.
>
> alice
>
> > >Well, how about using CO2 gas to titrate with, and automate
> > >the gas flow with a pic?
> >
> > I'm affraid that noone is going to convince acetic acid to react with carbon dioxide.
> >
> > Josef
> >
> >
> > =======================================================================
> > Electronical devices for chemical laboratory, custom electronics design
> > -----------------------------------------------------------------------
> > Snail Instruments                      Josef Hanzal, M. S.
> > Vojanova 615                           phone/fax: +420-311-624433
> > 266 01 Beroun                          e-mail: snail@iol.cz
> > Czech Republic                         URL: http://www.vitrum.cz/snail/
> > GPS: 49deg58'28" North, 14deg 4'35" East
> > =======================================================================
> >
> > --
> > http://www.piclist.com hint: PICList Posts must start with ONE topic:
> > [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads
> >
> >
> >
>
> --
> http://www.piclist.com hint: PICList Posts must start with ONE topic:
> [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads
>
>

--
http://www.piclist.com hint: The PICList is archived three different
ways.  See http://www.piclist.com/#archives for details.