Continuous in Situ Determinations of Nitrite at Nanomolar Concentrations

L. R. Adornato; E. A. Kaltenbacher; T. A. Villareal; R. H. Byrne

doi:10.1016/j.dsr.2004.11.008

Continuous in Situ Determinations of Nitrite at Nanomolar Concentrations

L. R. Adornato, E. A. Kaltenbacher, T. A. Villareal, R. H. Byrne

College of Marine Science

Research output: Contribution to journal › Article › peer-review

Abstract

Sharp gradients of chemical distributions in the nutricline are poorly resolved via conventional sampling techniques. Resolution of the fine structure of chemical distributions in the water column requires the use of in situ procedures. We describe here a high-resolution method for the measurement of nitrite concentrations in the upper 200 m of the water column. A long-pathlength Teflon AF-2400 liquid core waveguide provides the low nanomolar detection limits required for observations of nitrite in near-surface waters. Our spectrophotometric elemental analysis system (SEAS) has a two second sampling period. Coupled with an 11 cm/s descent rate, SEAS is able to accurately identify the depth of the primary nitrite maximum and provide a detailed inventory for nitrite in the upper ocean.

Original language	American English
Journal	Deep Sea Research Part I: Oceanographic Research Papers
Volume	52
DOIs	https://doi.org/10.1016/j.dsr.2004.11.008
State	Published - Jan 1 2005

Keywords

Nitrite
Sea water
Liquid core waveguide
Spectrophotometry
In situ instrumentation
Oligotrophic
North Pacific Subtropical Gyre

Disciplines

Life Sciences

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10.1016/j.dsr.2004.11.008License: CC BY

https://doi.org/10.1016/j.dsr.2004.11.008

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title = "Continuous in Situ Determinations of Nitrite at Nanomolar Concentrations",

abstract = " Sharp gradients of chemical distributions in the nutricline are poorly resolved via conventional sampling techniques. Resolution of the fine structure of chemical distributions in the water column requires the use of in situ procedures. We describe here a high-resolution method for the measurement of nitrite concentrations in the upper 200 m of the water column. A long-pathlength Teflon AF-2400 liquid core waveguide provides the low nanomolar detection limits required for observations of nitrite in near-surface waters. Our spectrophotometric elemental analysis system (SEAS) has a two second sampling period. Coupled with an 11 cm/s descent rate, SEAS is able to accurately identify the depth of the primary nitrite maximum and provide a detailed inventory for nitrite in the upper ocean.",

keywords = "Nitrite, Sea water, Liquid core waveguide, Spectrophotometry, In situ instrumentation, Oligotrophic, North Pacific Subtropical Gyre",

author = "Adornato, {L. R.} and Kaltenbacher, {E. A.} and Villareal, {T. A.} and Byrne, {R. H.}",

year = "2005",

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doi = "10.1016/j.dsr.2004.11.008",

language = "American English",

volume = "52",

journal = "Deep Sea Research Part I: Oceanographic Research Papers",

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TY - JOUR

T1 - Continuous in Situ Determinations of Nitrite at Nanomolar Concentrations

AU - Adornato, L. R.

AU - Kaltenbacher, E. A.

AU - Villareal, T. A.

AU - Byrne, R. H.

PY - 2005/1/1

Y1 - 2005/1/1

N2 - Sharp gradients of chemical distributions in the nutricline are poorly resolved via conventional sampling techniques. Resolution of the fine structure of chemical distributions in the water column requires the use of in situ procedures. We describe here a high-resolution method for the measurement of nitrite concentrations in the upper 200 m of the water column. A long-pathlength Teflon AF-2400 liquid core waveguide provides the low nanomolar detection limits required for observations of nitrite in near-surface waters. Our spectrophotometric elemental analysis system (SEAS) has a two second sampling period. Coupled with an 11 cm/s descent rate, SEAS is able to accurately identify the depth of the primary nitrite maximum and provide a detailed inventory for nitrite in the upper ocean.

AB - Sharp gradients of chemical distributions in the nutricline are poorly resolved via conventional sampling techniques. Resolution of the fine structure of chemical distributions in the water column requires the use of in situ procedures. We describe here a high-resolution method for the measurement of nitrite concentrations in the upper 200 m of the water column. A long-pathlength Teflon AF-2400 liquid core waveguide provides the low nanomolar detection limits required for observations of nitrite in near-surface waters. Our spectrophotometric elemental analysis system (SEAS) has a two second sampling period. Coupled with an 11 cm/s descent rate, SEAS is able to accurately identify the depth of the primary nitrite maximum and provide a detailed inventory for nitrite in the upper ocean.

KW - Nitrite

KW - Sea water

KW - Liquid core waveguide

KW - Spectrophotometry

KW - In situ instrumentation

KW - Oligotrophic

KW - North Pacific Subtropical Gyre

UR - https://digitalcommons.usf.edu/msc_facpub/1744

UR - https://doi.org/10.1016/j.dsr.2004.11.008

U2 - 10.1016/j.dsr.2004.11.008

DO - 10.1016/j.dsr.2004.11.008

M3 - Article

VL - 52

JO - Deep Sea Research Part I: Oceanographic Research Papers

JF - Deep Sea Research Part I: Oceanographic Research Papers

ER -

Continuous in Situ Determinations of Nitrite at Nanomolar Concentrations

Abstract

Keywords

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