Analytical method for the determination of 4,4'-methylene-bis(2-chloroaniline)
Translation of DGUV Information 213-538 (former BGI 505-38 or ZH1/120.38)
CAS Number: 101-14-4
Method 01 – GC – limited suitability: category E1 and E3
Sampling with a pump and absorption in sulfuric acid. Gas chromatography after sample preparation.
This method permits the determination of 4,4'-methylene-bis(2-chloroaniline) concentrations in working areas averaged over the sampling time after personal or stationary sampling.
Principle
With a pump a measured air volume is drawn through a glass-fibre filter impregnated with sulfuric acid or through three wash bottles in series. After sample preparation, the absorbed 4,4'-methylene-bis(2-chloroaniline) is determined by gas chromatography.
Detection limit (LOD)
Absolute: 11 ng.
Relative: 0.04 mg/m³ 4,4'-methylene-bis(2-chloroaniline) for a 140-litre air sample.
Issue
August 1987
The measuring method is of limited suitability (E1 and E3).
The complete measuring method is available in the Wiley Online Library: Method for the determination of 4,4'-methylene-bis(2-chloroaniline) (Analyses of Hazardous Substances in Air, Volume 7, 2003).
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