Affiliation:
1. Akzo Research Laboratories Arnhem, Corporate Research Department, Postbox 60, 6800 AB Arnhem, The Netherlands
Abstract
A method is described for the instantaneous concentration measurement of formaldehyde (H2CO) in air by laser-induced fluorescence of the H2CO (Ã1A″-X˜1A1) electronic transition. Concentrations down to about 13 ng/litre (about 10 ppb) can be determined in about 100 seconds without any sample collection, water extraction, or further chemical treatment. The influence of the presence of water vapor and methanol vapor in the air on the accuracy of the method has been investigated. It appeared that if the humidity of the ambient air is not taken into account, the detection limit is about 0.15 ppm H2CO in air; the presence of methanol has no influence on the accuracy.
Subject
Spectroscopy,Instrumentation
Cited by
94 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献