New approaches to extraction techniques in determination of 4,4′-methylenebis(2-chloroaniline) in air and water solutions

► Extraction techniques in sampling of MOCA. ► Air sampling of MOCA performed on the derivatization way. ► Sampling of MOCA from water solution performed with use of nanoporous SPME coatings. ► Application of extraction techniques allow to determine MOCA with good accuracy.