Development of high-temperature pulsed slit nozzle and its application to supersonic jet absorption spectrometry

Shin'ichiro Kawamura, Cheng-Huang Lin, Totaro Imasaka

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

A high-temperature pulsed slit nozzle, consisting of a circular pulsed nozzle and an interface to convert a circular flow into a slit flow has been constructed. The absorption spectrum is measured by scanning the wavelength of the monochromator equipped with a xenon arc lamp and by detecting the transmitted light through a jet with a photomultiplier. A rotationally cooled spectrum is clearly observed for aniline only when a long slit nozzle is employed. The absorptivity increases proportionally to the slit length at least up to 6 cm. The time for recording a spectrum is 3.5 min, which is reduced to several seconds by transmitting a white light through a jet and by measuring the spectrum with an optical multichannel analyzer. The detection limit is estimated to a partial vapor pressure of 0.4 torr for aniline. The present system can be conveniently used in routine analysis, because of a wide spectral coverage of the lamp source.

Original languageEnglish
Pages (from-to)1933-1936
Number of pages4
JournalTalanta
Volume41
Issue number11
DOIs
Publication statusPublished - 1994 Jan 1

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Spectrometry
Nozzles
Spectrum Analysis
Vapor Pressure
Light
Xenon
Temperature
Partial Pressure
Arc lamps
Limit of Detection
Monochromators
Photomultipliers
Vapor pressure
Electric lamps
Partial pressure
Absorption spectra
Scanning
Wavelength
aniline

ASJC Scopus subject areas

  • Analytical Chemistry

Cite this

Development of high-temperature pulsed slit nozzle and its application to supersonic jet absorption spectrometry. / Kawamura, Shin'ichiro; Lin, Cheng-Huang; Imasaka, Totaro.

In: Talanta, Vol. 41, No. 11, 01.01.1994, p. 1933-1936.

Research output: Contribution to journalArticle

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