15. In our instrument the combustion tube is filled with an oxidation catalyst (Cr 2 O 3 ), CuO wire, and Ag wool and reduction
tube with Cu wires. The balls are combusted at 1000
to
oxidase hydrocarbons and combustion products (N 2 , NOx,
etc.) are transferred through a reduction tube (reduce oxides
of N to N 2 ) for measurement in the detector of the analyzer.
References
1. Grasshoff K, Ehrhardt M, Kremling K (1999)
Methods of seawater analysis. Wiley-VCH Verlag Gmbh, Weinheim
2. Schnetger B, Lehners C (2014) Determination
of nitrate plus nitrite in small volume marine
water samples using vanadium(III)chloride as a
reduction agent. Mar Chem 160:91–98
3. Hutte RS, Sievers RE, Birks JW (1986) Gas
chromatography detectors based on chemiluminescence. J Chromatogr Sci 24:499–505
4. Koroleff F (1979) Methods for the chemical
analysis for seawater. Meri 7:1–60. (In Finnish)
80
Jaana Koistinen et al.
tube with Cu wires. The balls are combusted at 1000
to
oxidase hydrocarbons and combustion products (N 2 , NOx,
etc.) are transferred through a reduction tube (reduce oxides
of N to N 2 ) for measurement in the detector of the analyzer.
References
1. Grasshoff K, Ehrhardt M, Kremling K (1999)
Methods of seawater analysis. Wiley-VCH Verlag Gmbh, Weinheim
2. Schnetger B, Lehners C (2014) Determination
of nitrate plus nitrite in small volume marine
water samples using vanadium(III)chloride as a
reduction agent. Mar Chem 160:91–98
3. Hutte RS, Sievers RE, Birks JW (1986) Gas
chromatography detectors based on chemiluminescence. J Chromatogr Sci 24:499–505
4. Koroleff F (1979) Methods for the chemical
analysis for seawater. Meri 7:1–60. (In Finnish)
80
Jaana Koistinen et al.