Abstract
Analytical method for determination of di-2-ethylhexyl adipate (DEHA) in airborne particulates was investigated. Airborne particulates collected on glass fiber filters by high volume air samplers were extracted with benzene in a Soxhlet apparatus during 8 hours. The benzene extractable compounds were concentrated with Kuderna-Danish apparatus and separated by silica gel column chromatography. DEHA was identified by gas chromatography (GC)/mass spectrometry (MS) and determined by capillary column GC and GC/MS. Overall recoveries of drawing airborne particulates at 780l/min and 1300l/min were 89.9% and 78.6%. By this method, DEHA in airborne particulates was measured in the Kitakyushu district and found to be 1.26ng/m3.
