Determination of Paint Solvents by Vapour Phase Fourier Transform Infrared Spectrometry.
作者:
Emilio López-Anreus,
Salvador Garrigues,
Miguel de la Guardia,
期刊:
Spectroscopy Letters
(Taylor Available online 1997)
卷期:
Volume 30,
issue 8
页码: 1629-1648
ISSN:0038-7010
年代: 1997
DOI:10.1080/00387019708006748
出版商: Taylor & Francis Group
关键词: Infrared Spectrometry;Flow Analysis;Paint Solvents;Vapour Phase;Methylisobutylketone;Toluene
数据来源: Taylor
摘要:
A fast procedure has been developed for the direct determination of paint solvents. The method is based on the injection of small volumes of untreated solvent mixtures into a heated Pyrex glass reactor in which the sample is volatilized and introduced by means of a flow of nitrogen into an IR multiple pass gas cell and the spectrum in the mid-IR region is registered as a function of time. Data found for samples are interpolated in calibration graphs obtained by injecting different volumes of pure compounds which constitute the solvent mixture. A methylisobutylketone (MIBK) toluene mixture was used as test system to develop the proposed procedure. The method provides a limit of detection of the order of 1–4 μg, a relative standard deviation of the order of 0.4 to 2% for five independent measurements, and recovery percentage values from 99.8 till 103.6 %. A commercial sample of polyurethane paint solvent has been analysed by the developed procedure.
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