title: Compact, open and general purpose cell of variable effective pathlength: direct absorption measurement of SO(4)(2-) in water.
abstract: The use of an optothermal window (OW) was proposed for the direct (no need for sample preparation) spectroscopic, non-destructive measurement of SO(4)(2-) in water at 1078 cm(-1). The presently determined limit of detection (LOD) of 1 mmol/L is comparable to that provided by CO(2) laser photoacoustic spectroscopy, but about one order of magnitude superior to that obtainable by the ATR method.
authors.affiliation: Laser Photoacoustic Laboratory, Department of Agricultural Engineering and Physics, Wageningen Agricultural University, Bomenweg 4, NL-6703 HD, Wageningen, The Netherlands, Jan.PaulFavier@user.aenf.wau.nl
authors.forename: J P
authors.initials: JP
authors.lastname: Favier
authors.forename: D
authors.initials: D
authors.lastname: Bicanic
authors.forename: M
authors.initials: M
authors.lastname: Chirtoc
authors.forename: P
authors.initials: P
authors.lastname: Helander