[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

RE: Aquatic Plants Digest V3 #793



> From: Chris Schmelzer <cschmelz at mcw_edu>
> Subject: Any iron test kit news?
>
> Many articles listed the Lamotte as the best, but others said that it
> couldn't read EDTA chelated iron (such as that in my PMDD trace mix),
> which makes it pretty much useless...
>
> Other articles listed the similarly priced Hach (?) kit as the best
> and seemed to indicate it MAY read chelated iron...
>
> This is a pretty big investment so what should I do???

I went through several of the less expensive brands and got either false
negatives or false positives with all of them.  Eventually I bought the
LaMotte kit and have been very happy with it.

I have heard arguments before about whether or not it (or any other) kit
will register chelated iron.  I'm not a chemist and cannot comment on that.
I *can* say that when I add trace element mix with chelated iron in it the
LaMotte kit registers iron, and when it is all gone the LaMotte kit
registers no iron.

Frank.
-----
The very act of seeking sets something in motion to meet us;
something in the universe, or in the unconscious responds as if
to an invitation.  - Jean Shinoda Bolen

http://home.istar.ca/~fir