共鳴セルを用いたパルスレーザー励起光音響法による高感度ガス分析

DOI NDLデジタルコレクション Web Site Web Site 被引用文献1件

書誌事項

タイトル別名
  • Trace gas analysis by pulsed laser induced photoacoustic spectroscopy using resonant cell.
  • キョウメイ セル オ モチイタ パルス レーザー レイキコヒカリオンキョウホウ

この論文をさがす

抄録

A photoacoustic system suitable for pulsed laser excitation was presented for detecting the trace gaseous components in air and high purity gases. The photoacoustic cell used was a longitudinal resonant cell which had a double tube structure. This cell was used as a flow cell. It had a low background. Pulsed Nd: YAG laser (532nm) was used as an exciting source. Nitrogen dioxide diluted with nitrogen was used as sample gas. The inner resonant tubes of 21, 31 and 42cm lengths were tested and it was found that the inner tube of 42cm length was the best because of the low background and good linearity. The signal intensity for nitrogen dioxide was affected by the pulse repetition rate and the sample flow rate. The detection limit for nitrogen dioxide was 5 ppb (S/N=2) under the conditions that sample flow rate was 21/min and pulse repetition rate was 1 pulse per second. It was demonstrated that this system can monitor nitrogen dioxide in room air at every 65s. Further, near infrared (1600-1770nm) photoacoustic spectra of benzen was measured with the use of a pulsed near infrared tunable laser as another exciting source.

収録刊行物

  • 分析化学

    分析化学 40 (6), 283-288, 1991

    公益社団法人 日本分析化学会

被引用文献 (1)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ