Analysis method of an organic compound of low molecular weight is 20 or less carbon atoms in the fabric made of chemical fibers treated with water and oil repellent

摘要

And a method that can be analyzed with high accuracy a low molecular organic compound which is 20 or less carbon atoms be present in minor amounts in the cloth and which comprises chemical fibers treated with [Problems] water and oil repellent. A step of obtaining a solution by dissolving in a solvent which can dissolve the resin constituting the cloth, a cloth made of chemical fibers treated [SOLUTION] In (a) a water and oil repellent, and (b) the solution, solid-liquid separation liquid comprising the steps of mixing a solvent capable of agglomerating the resin to obtain a liquid containing agglomerates of the resin is caused to agglomerate the resin, aggregates and (c) the resin, the liquid phase a step of obtaining, (d) liquid chromatography - mass spectrometry, liquid chromatography - tandem mass spectrometry, gas chromatography - Gas chromatograph mass spectrometer or - using a tandem mass spectrometer, the number of carbon atoms in the liquid phase analysis method and a step of measuring the concentration of a low molecular weight organic compound that is 20 or less. [Selection Figure Figure 2