Characterization of Odorous Compounds (VOC and Carbonyl Compounds) in the Ambient Air of Yeosu and Gwangyang, Large Industrial Areas of South Korea

Table 3

Operating conditions for the HPLC analysis of carbonyl compounds.

Operating parameter	Specifications and conditions
HPLC system	Shimadzu SCL-6B with Shimadzu SPD-6 AV UV/VIS detector at 360 nm
Analytical column	Shim-Pack CL-ODS (M) 4.6 mm × 150 mm with a C18 guard column
Mobile phase	A: acetonitrile 100 (V),; B: water/acetonitrile/tetrahydrofuran 50/45/5 (v/v)
Gradient elution	100% for B for 5 min, and then 60 : 40% A : B for 15 min, finally 100% A for 50 min
Flow rate and injection volume	1.0 mL/min and 20 L injection