Quantitative determination of styrene in biological samples and expired air by gas chromatography-mass spectrometry (selected ion monitoring).

Styrene, phenylethylene, is an oily liquid of commercial importance in the manufacture of various plastics, rubbers, resins, and insulating materials. A gas chromatographic-mass spectrometric method is described for the determination of low levels of styrene in biological samples. The procedure utilizes an internal standard and specificity is gained by monitoring selected ions.