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A Sensor Package for the Simultaneous Determination of Nanomolar Concentrations of Nitrite, Nitrate, and Ammonia in Seawater by Fluorescence Detection by Robert T Masserini Jr.; Kent A Fanning is a Earth and Planetary Sciences article available to read on EtoBox.
What is A Sensor Package for the Simultaneous Determination of Nanomolar Concentrations of Nitrite, Nitrate, and Ammonia in Seawater by Fluorescence Detection about?
## Ž A fluorescence-based chemistry has been developed for the detection of nitrite and nitrate as excess nitrite following . reduction of nitrate to nitrite . Detection limits are 4.6 and 6.9 nM, respectively. The technique capitalizes on the triple bond between the two nitrogen atoms within the diazonium ion formed via the well-known reaction between an acidified nitrite sample and an aromatic primary amine. Fluorescence of p-electrons within this bond allows this reaction to be probed with Ž . standard fluorescence spectroscopy. Reverse Flow Injection Analysis rFIA is used to correct for background fluorescence Ž . from leachates and naturally occurring dissolved organic matter DOM . Comparisons of samples analyzed for nitrite with w this technique and with a highly-sensitive chemiluminescent method Braman, R.S., Hendrix, S.A., 1989. Nanogram nitrite Ž . and nitrate determination in environmental and biological materials by vanadium III reduction with chemiluminescence Ž . x Ž detection. Analytical Chemistry, 61 24 2716-2718 showed excellent agreement between the two methods slopes 0.9996 2 . and r s 0.9956 . These fluorescent nitrite and nitrate q nitrite chemistries were coupl
Who reads A Sensor Package for the Simultaneous Determination of Nanomolar Concentrations of Nitrite, Nitrate, and Ammonia in Seawater by Fluorescence Detection?
It is typically read by researchers, students, and practitioners in Earth and Planetary Sciences.
- Author
- Robert T Masserini Jr.; Kent A Fanning
- Publisher
- Elsevier Science; Elsevier ; Elsevier BV (ISSN 0304-4203)
- Published
- 2000
- Language
- EN
- Field
- Earth and Planetary Sciences (Physical Sciences)