Re: chloride analysis

Hi,

Thanks for the response.  The problem is we do not have yet an ion
chromatograph.  So we decided to temporarily use an alternative means of
checking for the amount of  Chloride in the water.  As I have mentioned, we
used Silver nitrate to precipitate chloride as silver chloride and then use
the photometer to read on the absorbance.  This is because we have a
photometer.

So, I am interested if we are doing it right? And what are the things that I
need to concern my self with?  Any comments would be appreciated on how to
improve the accuracy of the test....

Thanks!

Regards.

"Tardus Merula" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]
> For low chloride (in water) ion cromatograpy is a method of choice. ref
EN
> ISO 10304-1
> Another acceptable method is in German Standard  DIN  38405-1,
> Ausgabe:1985-12 (redox titration)
> Tardus
>
>
> "pasky" <[EMAIL PROTECTED]> wrote in message
> news:[EMAIL PROTECTED]
> > hi,
> >
> > has anyone ever use silver nitrate to precipitate chloride in
determining
> > chloride concentration using spectrophotometer?
> >
> > What are the things to watch out for? Is it acceptable to be used in low
> > range analysis, in ppb level?
> >
> > Thanks for any input.
> >
> >
> >
>
>