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ISO 17734-2

Determination of organonitrogen compounds in air using liquid chromatography and mass spectrometry Part 2: Amines and aminoisocyanates using dibutylamine and ethyl chloroformate derivatives

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Organization: ISO
Publication Date: 1 March 2006
Status: active
Page Count: 36
ICS Code (Workplace atmospheres): 13.040.30
scope:

This part of ISO 17734 gives general guidance for the sampling and analysis of airborne amines and aminoisocyanates in workplace air. It is strongly recommended that the determination of amines and aminoisocyanates is made together with the determination of isocyanates in air, using DBA as a reagent (see ISO 17734-1).

The method can be used for simultaneous determinations of amines, such as 4,4'-methylenediphenyldiamine (4,4'-MDA), 2,4- and 2,6-toluenediamine (2,4- and 2,6-TDA), and 1,6-hexamethylenediamine (1,6- HDA), and compounds containing both isocyanate and amine groups, such as 4,4'-methylenediphenyl aminoisocyanate (4,4'-MAI), 2,4-, 4,2-, and 2,6-toluene aminoisocyanate (2,4-, 4,2-, and 2,6-TAI), and 1,6-hexamethylene aminoisocyanate (1,6-HAI). The method is suitable for collecting amines and aminoisocyanates in both the gas and particle phases. The instrumental detection limit for the amines is about 5 nmol/sample and for the aminoisocyanate, it is about 0,3 nmol/sample. For a 15 l air sample, this corresponds to 0,4 ng⋅m-3 for TDA and 0,03 ng⋅m-3 for TAI.

Document History

ISO 17734-2
March 1, 2006
Determination of organonitrogen compounds in air using liquid chromatography and mass spectrometry Part 2: Amines and aminoisocyanates using dibutylamine and ethyl chloroformate derivatives
This part of ISO 17734 gives general guidance for the sampling and analysis of airborne amines and aminoisocyanates in workplace air. It is strongly recommended that the determination of amines and...
March 1, 2006
Determination of organonitrogen compounds in air using liquid chromatography and mass spectrometry Part 2: Amines and aminoisocyanates using dibutylamine and ethyl chloroformate derivatives
A description is not available for this item.

References

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