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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