Photoacoustic spectrometry using a fiber-optic pressure sensor

Autor:	Totaro Imasaka, Nobuhiko Ishibashi, Ken-Ichi Yasunaga, Yuji Kawabata
Rok vydání:	1993
Předmět:	Photoacoustic effect Detection limit Optical fiber business.industry Chemistry Laser Pressure sensor Signal Analytical Chemistry law.invention Optics law business Absorption (electromagnetic radiation) Photoacoustic spectroscopy
Zdroj:	Analytical Chemistry. 65:3493-3496
ISSN:	1520-6882 0003-2700
Popis:	A photoacoustic sensor is constructed by using an optical fiber. Tie signal is measured as a light transmission loss caused by a microbending effect. The pressure sensor, consisting of a coiled optical fiber, is installed in a sample cell for absorption measurement by photoacoustic spectroscopy (PAS). A frequency-doubled Xd:YAG laser is introduced into the sample cell, and a photoacoustic signal is measured as an intensity decrease of a He-Xe laser beam passed through an optical fiber. The detection limit for a chelate compound of iron II -4,7-diphenyl-1,10-phenanthrolinedisulfonic acid is 1.2×10 -6 M
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::52b121ef05abf28e6f931a52f6c7d338 https://doi.org/10.1021/ac00071a027 Zobrazit plný text záznamu