Analytical method for the determination of hydrazine

Translation of DGUV Information 213-520 (former BGI 505-20 or ZH1/120.20)

CAS Number: 302-01-2

Method 04 – GC/MS – limited suitability: category E2

Sampling is carried out with a pump and collected onto XAD-2 impregnated with 2,4-pentanedione. Analysis is performed by gas chromatography-mass spectrometry (GC-MS) after solvent desorption.

The analytical method describes the determination of the mean concentration of hydrazine in workplace air averaged over the sampling period after personal or stationary sampling.

Principle

A defined air volume is drawn through a tube filled with XAD-2 impregnated with 2,4-pentanedione using a suitable flow-regulated sampling pump. After sampling the formed 3,5-dimethylpyrazole is desorbed with methanol and analysed by means of gas chromatography-mass spectrometry (GC-MS). 

Limit of quantification (LOQ)

Absolute: 0.05 ng of hydrazine.

Relative: 0,002 mg/m³ of hydrazine for an air sample volume of 48 L, 2 mL desorption solution and an injection volume of 1 µL.

Issue

May 2014

The measuring method is of limited suitability (E2).

The complete measuring method is available in the Wiley Online Library: Method for the determination of hydrazine in workplace air using gas chromatography-mass spectrometry (GC-MS) (Air Monitoring Methods, 2017). 

Go to the Wiley Online Library