Stable isotope profiles of nitrogen gas indicate denitrification in oxygen-stratified humic lakes

Marja A. Tiirola; Antti J. Rissanen; Miika Sarpakunnas; Lauri Arvola; Hannu Nykänen

doi:10.1002/rcm.4917

Stable isotope profiles of nitrogen gas indicate denitrification in oxygen-stratified humic lakes

Marja A. Tiirola
, Antti J. Rissanen
, Miika Sarpakunnas
, Lauri Arvola
, Hannu Nykänen

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

12 Citations (Scopus)

Abstract

Mid-summer N(2) profiles were analyzed from nine oxygen-stratified, humic-acid-rich lakes using a continuous flow isotope ratio mass spectrometer and a Gasbench II device. Sample preparation steps were performed under water to avoid air contamination. The instrument precision for the delta(15)N measurement was high (0.03 parts per thousand), but for the whole sampling and analysis procedure the mean deviation between replicate samples was 0.13 parts per thousand for the delta(15)N measurements and 5.5% for the N(2) gas concentration analysis. The results show that the Gasbench peripheral was suitable for measurement of the (15)N natural abundance of dissolved nitrogen gas, with denitrification indicated by the over-saturation and slightly (

Original language	English
Pages (from-to)	1497-1502
Number of pages	6
Journal	Rapid Communications in Mass Spectrometry
Volume	25
Issue number	11
DOIs	https://doi.org/10.1002/rcm.4917
Publication status	Published - 15 Jun 2011
Publication type	A1 Journal article-refereed
Event	Combined Meetings of the BMSS Special Interest Group on Stable Isotopes (BMSS ISO-SIG)/ Stable Isotopes Mass Spectrometry Users Group (SIMSUG)/ Stable Isotopes in Biosphere-Atmosphere-Earth System Research (SIBAE) - Exeter, Finland Duration: 27 Apr 2010 → 30 Apr 2010

Keywords

FRESH-WATER
BLACK-SEA
DELTA-N-15
CARBON
NITRIFICATION
DELTA-C-13
SEDIMENT
ARGON

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title = "Stable isotope profiles of nitrogen gas indicate denitrification in oxygen-stratified humic lakes",

abstract = "Mid-summer N(2) profiles were analyzed from nine oxygen-stratified, humic-acid-rich lakes using a continuous flow isotope ratio mass spectrometer and a Gasbench II device. Sample preparation steps were performed under water to avoid air contamination. The instrument precision for the delta(15)N measurement was high (0.03 parts per thousand), but for the whole sampling and analysis procedure the mean deviation between replicate samples was 0.13 parts per thousand for the delta(15)N measurements and 5.5\% for the N(2) gas concentration analysis. The results show that the Gasbench peripheral was suitable for measurement of the (15)N natural abundance of dissolved nitrogen gas, with denitrification indicated by the over-saturation and slightly (",

keywords = "FRESH-WATER, BLACK-SEA, DELTA-N-15, CARBON, NITRIFICATION, DELTA-C-13, SEDIMENT, ARGON",

author = "Tiirola, \{Marja A.\} and Rissanen, \{Antti J.\} and Miika Sarpakunnas and Lauri Arvola and Hannu Nyk{\"a}nen",

year = "2011",

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doi = "10.1002/rcm.4917",

language = "English",

volume = "25",

pages = "1497--1502",

journal = "Rapid Communications in Mass Spectrometry",

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note = "Combined Meetings of the BMSS Special Interest Group on Stable Isotopes (BMSS ISO-SIG)/ Stable Isotopes Mass Spectrometry Users Group (SIMSUG)/ Stable Isotopes in Biosphere-Atmosphere-Earth System Research (SIBAE) ; Conference date: 27-04-2010 Through 30-04-2010",

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T1 - Stable isotope profiles of nitrogen gas indicate denitrification in oxygen-stratified humic lakes

AU - Tiirola, Marja A.

AU - Rissanen, Antti J.

AU - Sarpakunnas, Miika

AU - Arvola, Lauri

AU - Nykänen, Hannu

PY - 2011/6/15

Y1 - 2011/6/15

N2 - Mid-summer N(2) profiles were analyzed from nine oxygen-stratified, humic-acid-rich lakes using a continuous flow isotope ratio mass spectrometer and a Gasbench II device. Sample preparation steps were performed under water to avoid air contamination. The instrument precision for the delta(15)N measurement was high (0.03 parts per thousand), but for the whole sampling and analysis procedure the mean deviation between replicate samples was 0.13 parts per thousand for the delta(15)N measurements and 5.5% for the N(2) gas concentration analysis. The results show that the Gasbench peripheral was suitable for measurement of the (15)N natural abundance of dissolved nitrogen gas, with denitrification indicated by the over-saturation and slightly (

AB - Mid-summer N(2) profiles were analyzed from nine oxygen-stratified, humic-acid-rich lakes using a continuous flow isotope ratio mass spectrometer and a Gasbench II device. Sample preparation steps were performed under water to avoid air contamination. The instrument precision for the delta(15)N measurement was high (0.03 parts per thousand), but for the whole sampling and analysis procedure the mean deviation between replicate samples was 0.13 parts per thousand for the delta(15)N measurements and 5.5% for the N(2) gas concentration analysis. The results show that the Gasbench peripheral was suitable for measurement of the (15)N natural abundance of dissolved nitrogen gas, with denitrification indicated by the over-saturation and slightly (

KW - FRESH-WATER

KW - BLACK-SEA

KW - DELTA-N-15

KW - CARBON

KW - NITRIFICATION

KW - DELTA-C-13

KW - SEDIMENT

KW - ARGON

U2 - 10.1002/rcm.4917

DO - 10.1002/rcm.4917

M3 - Article

SN - 0951-4198

VL - 25

SP - 1497

EP - 1502

JO - Rapid Communications in Mass Spectrometry

JF - Rapid Communications in Mass Spectrometry

IS - 11

T2 - Combined Meetings of the BMSS Special Interest Group on Stable Isotopes (BMSS ISO-SIG)/ Stable Isotopes Mass Spectrometry Users Group (SIMSUG)/ Stable Isotopes in Biosphere-Atmosphere-Earth System Research (SIBAE)

Y2 - 27 April 2010 through 30 April 2010

ER -

Stable isotope profiles of nitrogen gas indicate denitrification in oxygen-stratified humic lakes

Abstract

Keywords

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