SAMPLING AND ANALYSIS OF 1,3-BUTADIENE IN AIR BY GAS CHROMATOGRAPHY ON A POROUS-LAYER OPEN-TUBULAR FUSED-SILICA COLUMN

摘要

The preparation of standards for 1,3-butadiene analysis is complicated, because butadiene is a gas at room temperature. The method to prepare stock solutions developed in this study is reliably, as confirmed by a standard plot from these independent stock solutions. The qualitative and quantitative analysis was carried out using high-resolution gas chromatography with flame ionization detection (FID) and a fused-silica porous-layer open-tubular (PLOT) column. The use of acetonitrile as a desorption solvent gave a good recovery from charcoal and no interfering impurities were present. Active and passive sampling were tested in the laboratory and in petrochemical plants. These two methods had a very good correlation when tested in the field. [References: 9]