Volatile Organic Compound (VOC) Analysis and Anti-VOC Measures in Water-based Paints

We developed an analytical method for volatile organic compounds (VOCs) used as film-forming agents or anti-freeze agents in water-based paints by flame ionization detection (FID-GC) and gas chromatography mass spectrometry (GC/MS). Twelve VOC components were separated using 2 types of column that differ in polarity. In addition, a pretreatment method by ethyl acetate-water partition was evaluated, and a survey of the use of VOCs in commercially available water-based paints was performed. For indoor paints, the anti-VOC measures included changes from VOC solvents to semi-VOC (SVOC) solvents such as those from 2,2,4-trimethyl-1,3-pentanediol-monoisobutyrate (TMPMIB) to 2,2,4-trimethyl-1,3-pentanediol diisobutyrate and from ethylene glycol (EG) to triethylene glycol. However, in multipurpose paints for both indoor and outdoor use, VOCs such as EG, TMPMIB, diethyleneglycol dibutyl ether, and diethyleneglycol monobutyl ether were detected. Since these products may be also used for indoor painting, indications of VOC components and caution for use on products are necessary.