Application of DI-SPME/GC-MS method for the analysis of MCPA residues in winter wheat tissues
Abstract
The application of SPME/GC-MS in order to determine the (4-chloro-2-methylphenoxy)
acetic acid (MCPA) residues in winter wheat seedlings tissues has been studied. The optimal
conditions for the SPME of MCPA adsorption were 20 min. in 50oC and 6 min. in 220oC
for desorption. The chlorophenoxy herbicide showed different level of accumulation in
seedling tissues of studied winter wheat cultivars. The application of the SPME/GC-MS
method for the MCPA residues monitoring and possible differences in its biodegradation
in the studied wheat tissues is discussed.
Key words: chlorophenoxy herbicide residues, winter wheat, DI-SPME, GC-MS