Analytical method for the determination of α-chlorotoluene
Translation of DGUV Information 213-559 (former BGI 505-59 or ZH1/120.59)
CAS Number: 100-44-7
Synonym: Benzyl chloride
Method 01 – GC – limited suitability: category E3
Sampling with a pump and adsorption on Tenax, gas chromatography after desorption.
This method permits the determination of α-chlorotoluene 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 Tenax tube. The adsorbed α-chlorotoluene is then desorbed with n-hexane and determined by gas chromatography.
Limit of quantification (LOQ)
Absolute: 0.5 ng α-chlorotoluene.
Relative: 0.01 mg/m3 α-chlorotoluene for 48 L air sample, 1 mL desorption solution and 1 µL injection volume.
Issue
December 1996
The measuring method is of limited suitability (E3).
The complete measuring method is available in the Wiley Online Library: Method for the determination of α-chlorotoluene (Analyses of Hazardous Substances in Air, Volume 5, 2002).
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