Open AccessA Method to Collect an Infrared Spectrum in Solution
Author(s) -
Haishui Wang,
Fei Lu,
Heng Zhai
Publication year - 2007
Publication title -
analytical sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.392
H-Index - 73
eISSN - 1348-2246
pISSN - 0910-6340
DOI - 10.2116/analsci.23.869
Subject(s) - chemistry , solvent , infrared , spectrum (functional analysis) , infrared spectroscopy , sample (material) , analytical chemistry (journal) , compensation (psychology) , optics , chromatography , organic chemistry , physics , psychology , quantum mechanics , psychoanalysis
Herein we report a new method to collect a qualified infrared spectrum of a solute in solution by two solvent cells with different thickness during background single-beam spectrum scanning. By collecting the background spectrum with two cells (two stages), we successfully achieved accurate solvent compensation between a sample and a reference, namely, the solvent amounts in the sample and background measurements could become congruent. Therefore, the solvent bands were thoroughly suppressed in the infrared spectrum and a qualified spectrum of the solute was obtained.