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Re: Lamotte nitrate kit
First I would check the expiration date on the kits. If they are OK, make
sure that the SeaChem reagent is shook up real well. I had a similar
comparison problem when I tested my friend's nitrate levels. I had a
Lamotte kit that said his nitrates were over 30ppm. He had a SeaChem
nitrate kit that show a fairly low reading. We asked Dr Morin about it and
sure enough the reagent of the SeaChem kit had solidified a bit on the
bottom. Shake it up real good. Then we got similar readings. And yes,
for nitrate readings, do multiply the Lamotte value by 4.4.
-Jin
>I would really like to know the answer to this as
well.
>I have been using a Seachem nitrate kit that has been
>showing about 5ppm. The last two tests have come out
>an orangish pink color that matches nothing on the
>color slide. I asked Tom Connors to bring his Lamotte
>kit to our board meeting last night and he did. I
>wanted to see it for myself before investing. The
>comparator looks neat and probably way easier to read
>than the Seachem (which IMO does make a good phosphate
>kit). Tom tested my water and said that it came to
>17.6ppm. You multiplied it by 4.4, right Tom? Could
t>he Seachem kit be that off?