This analytical method is a validated measurement procedure for the determination of acrylonitrile [107-13-1] after personal or stationary sampling. Sampling is performed by drawing a defined volume of air through an adsorption tube made of stainless steel packed with Chromosorb 106 using a suitable flow-regulated pump. After thermal desorption, the acrylonitrile retained on the adsorbent is analysed using gas chromatography with flame ionisation detection and mass spectrometry. The relative limit of quantification (LOQ) is 0.0042 mg acrylonitrile/m³ for an air sample volume of 2.4 l. The mean recovery for acrylonitrile was 104%. The concentration-dependent expanded uncertainty was 26.0% to 26.6%. This analytical method has been accredited by the accident insurance companies for the detection in workplace air of substances that are carcinogenic, mutagenic or toxic to reproduction. This method has been tested and recommended for the determination of acrylonitrile in work areas by the German Social Accident Insurance (DGUV). Both personal and stationary sampling can be performed for measurements in
order to evaluate work areas.