GC MS Determination of 3 Aminobenzenes in Organic Building Adhesives

A method of GCMS determination of 3 aminobenzenes in organic building adhesives was proposed. The 3 aminobenzenes in the sample were extracted ultrasonically with ethanol. After centrifugation, the extract was filtered on 0.22 μm organic filtering membrane and the filtrate used for GCMS analysis. DBWAX (30 m×0.25 mm, 0.25 μm) capillary column was used for GC separation and the fullscanning mode as well as the selected ion monitoring mode were adopted in MS determination. Linear relationships between values of peak area and mass concentration of the 3 aminobenzenes were kept in definite ranges. Detection limits (3S/N) found were ranged from 0.3 to 0.6 mg·kg-1. Tests for recovery were performed by addition of mixed standard of the 3 aminobenzenes at 3 concentration levels for 6 parallel determinations, results of recovery found were in the range of 91.1%-97.3% with RSD′s in the range of 1.7%-4.0%.