Analytical method for the determination of 2-nitrotoluene
Translation of DGUV Information 213-558 (former BGI 505-58 or ZH1/120.58)
CAS Number: 88-72-2
Synonyms:
- 1-Methyl-2-nitrobenzene
- o-Nitrotoluene
Method 01 – GC – limited suitability: category E3
Sampling with of a pump and adsorption on silica gel, gas chromatography after desorption.
This method permits the determination of 2-nitrotoluene 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 silica gel tube. The adsorbed 2-nitrotoluene is desorbed with methanol and determined by gas chromatography.
Limit of quantification (LOQ)
Absolute: 2 ng 2-nitrotoluene.
Relative: 0.025 mg/m3 ≙ 0.0044 mL/m3 (ppm) 2-nitrotoluene for 120 L air sample, 3 mL desorption solution and 2 µL injection volume.
Issue
June 1995
The measuring method is of limited suitability (E3).
The complete measuring method is available in the Wiley Online Library: Method for the determination of 2-nitrotoluene (Analyses of Hazardous Substances in Air, Volume 4, 1999).
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