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Aldehydes and Ketones  

SAMPLING FOR SELECTED ALDEHYDE AND KETONE EMISSIONS FROM STATIONARY SOURCES by METHOD 0011

Summary of Method
Gaseous and particulate pollutants are withdrawn isokinetically from an emission source and are collected in aqueous acidic 2,4-DNPH (dinitrophenylhydrazine). Formaldehyde present in the emissions reacts with the DNPH to form the formaldehyde DNPH derivative. The derivative is extracted, solvent-exchanged, concentrated, and then analysed by chromatography.

This method is applicable to the determination of Destruction and Removal Efficiency (DRE) of the following analytes:

Formaldehyde, Acetaldehyde, Acetophenone, Isophorone, Propionaldehyde

This method has been applied specifically to the above analytes but we can extend the method application to other aldehydes and ketones.

We also offer the option of analysis by LC-MS (Liquid Chromatography Mass Spectrometry), which can detect a number of additional compounds. This option enables analysis of over 40 compounds plus Mass Spectrometry confirmation in one test.

Leeder Consulting can also supply purified reagents as specified in Method 0011.

Leeder Consulting is NATA accredited for the analysis of Aldehydes and Ketones.