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Re: Questions about iron
- To: Aquatic-Plants at actwin_com
- Subject: Re: Questions about iron
- From: Greg Morin <greg at seachem_com>
- Date: Tue, 3 Apr 2001 11:51:09 -0400
- In-Reply-To: <200103300457.XAA20083 at actwin_com>
- References: <200103300457.XAA20083 at actwin_com>
>I don't have a Seachem test kit, but if it measures Fe+3, then it
>must chemically convert the ferrous to ferric before reading?
>> 5. My Seachem iron kit will not register any colour for at least four hours
>> and then gets darker the longer I leave it. Evaporation becomes a problem.
>> The next morning it looks as though I have way too much iron, but only a
>> little amount of water is left in the cup. What can I assume my iron level
>> to be?
>Dr. Morin? Care to shine any light...?
The test conditions of our kit do convert Fe+3 to Fe+2. This is a
fairly rapid process under the test condtions. With respect to not
getting a reading for 4 hours I'd say there is either no iron in
there or it is locked up with something even stronger than EDTA.
Tyipcally chelated iron should be measurable after 45 minutes to 1
hour with our test.
Gregory Morin, Ph.D. ~~~~~~~Research Director~~~~~~~~~~~~~~
Seachem Laboratories, Inc. www.seachem.com 888-SEACHEM