Rapid photometric method for the determination of the mass concentration of nitrogen monoxide and nitrogen dioxide

K. Suzuki; T. Niimi; N. Yamamoto; M. Shibata; M. Saeki; A. Ono; T. Shirai; S. Yanagisawa

doi:10.1016/0003-2670(94)80343-9

Rapid photometric method for the determination of the mass concentration of nitrogen monoxide and nitrogen dioxide

K. Suzuki, T. Niimi, N. Yamamoto, M. Shibata, M. Saeki, A. Ono, T. Shirai, S. Yanagisawa

Department of Applied Chemistry

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

1 Citation (Scopus)

Abstract

A novel method has been developed for the photometric determination of nitrogen oxides (NO_x; NO and NO₂ gases). The sample gas is shaken with an NaOHalkaline H₂O₂ solution in a container so that all the NO_x is converted to the NO^-₂ form. After decomposition of the H₂O₂ by heating, the colour is developed using naphthylethylenediamine and the absorbance at 545 nm is determined. The reference calibration gases consisting of NO and NO₂ are determined within 20 min by adding catalase (enzyme) as a rapid decomposition reagent for H₂O₂ instead of the heating decomposition. This simple and rapid photometric method can be used to determine NO_x down to 0.5 ppm (v/v) (0.244 mg/m³ as NO₂) in the case where a 1-1 sampling flask is used.

Original language	English
Pages (from-to)	135-141
Number of pages	7
Journal	Analytica Chimica Acta
Volume	295
Issue number	1-2
DOIs	https://doi.org/10.1016/0003-2670(94)80343-9
Publication status	Published - 1994 Sept 9

Keywords

Manual determination
Nitrogen oxides
Spectrophotometry

ASJC Scopus subject areas

Analytical Chemistry
Biochemistry
Environmental Chemistry
Spectroscopy

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10.1016/0003-2670(94)80343-9

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title = "Rapid photometric method for the determination of the mass concentration of nitrogen monoxide and nitrogen dioxide",

abstract = "A novel method has been developed for the photometric determination of nitrogen oxides (NOx; NO and NO2 gases). The sample gas is shaken with an NaOHalkaline H2O2 solution in a container so that all the NOx is converted to the NO-2 form. After decomposition of the H2O2 by heating, the colour is developed using naphthylethylenediamine and the absorbance at 545 nm is determined. The reference calibration gases consisting of NO and NO2 are determined within 20 min by adding catalase (enzyme) as a rapid decomposition reagent for H2O2 instead of the heating decomposition. This simple and rapid photometric method can be used to determine NOx down to 0.5 ppm (v/v) (0.244 mg/m3 as NO2) in the case where a 1-1 sampling flask is used.",

keywords = "Manual determination, Nitrogen oxides, Spectrophotometry",

author = "K. Suzuki and T. Niimi and N. Yamamoto and M. Shibata and M. Saeki and A. Ono and T. Shirai and S. Yanagisawa",

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T1 - Rapid photometric method for the determination of the mass concentration of nitrogen monoxide and nitrogen dioxide

AU - Suzuki, K.

AU - Niimi, T.

AU - Yamamoto, N.

AU - Shibata, M.

AU - Saeki, M.

AU - Ono, A.

AU - Shirai, T.

AU - Yanagisawa, S.

PY - 1994/9/9

Y1 - 1994/9/9

N2 - A novel method has been developed for the photometric determination of nitrogen oxides (NOx; NO and NO2 gases). The sample gas is shaken with an NaOHalkaline H2O2 solution in a container so that all the NOx is converted to the NO-2 form. After decomposition of the H2O2 by heating, the colour is developed using naphthylethylenediamine and the absorbance at 545 nm is determined. The reference calibration gases consisting of NO and NO2 are determined within 20 min by adding catalase (enzyme) as a rapid decomposition reagent for H2O2 instead of the heating decomposition. This simple and rapid photometric method can be used to determine NOx down to 0.5 ppm (v/v) (0.244 mg/m3 as NO2) in the case where a 1-1 sampling flask is used.

AB - A novel method has been developed for the photometric determination of nitrogen oxides (NOx; NO and NO2 gases). The sample gas is shaken with an NaOHalkaline H2O2 solution in a container so that all the NOx is converted to the NO-2 form. After decomposition of the H2O2 by heating, the colour is developed using naphthylethylenediamine and the absorbance at 545 nm is determined. The reference calibration gases consisting of NO and NO2 are determined within 20 min by adding catalase (enzyme) as a rapid decomposition reagent for H2O2 instead of the heating decomposition. This simple and rapid photometric method can be used to determine NOx down to 0.5 ppm (v/v) (0.244 mg/m3 as NO2) in the case where a 1-1 sampling flask is used.

KW - Manual determination

KW - Nitrogen oxides

KW - Spectrophotometry

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JO - Analytica Chimica Acta

JF - Analytica Chimica Acta

IS - 1-2

ER -

Rapid photometric method for the determination of the mass concentration of nitrogen monoxide and nitrogen dioxide

Abstract

Keywords

ASJC Scopus subject areas

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