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Re: NO3 testing
- To: Aquatic-Plants at actwin_com
- Subject: Re: NO3 testing
- From: Bill Warner <lww at ictech_net>
- Date: Thu, 16 May 2002 16:01:21 -0500
- In-reply-to: <200205161948.g4GJm1U13269 at acme_actwin.com>
- References: <200205161948.g4GJm1U13269 at acme_actwin.com>
> Date: Thu, 16 May 2002 05:56:49 -0400
> From: Jared Weinberger <jared at brainyday_com>
> Subject: Re: NO3 testing
>
> Yes, in fact LaMotte tells you that you would first have to perform a
> step to get rid of any nitrite before measuring the nitrate. Of course
> we plant folks (correctly) assume there isn't appreciable nitrite
> around.
Right, but you don't actually have to get rid of the nitrite first. You
can just measure it separately first, as with the Lamotte #3519, and if
nitrite is non-zero then you just subtract it from your nitrate result.
--Bill