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1000
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Abstract/Summary
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This analytical method is a validated measurement procedure for the determination of several phthalates such as dimethyl phthalate, diethyl phthalate, diallyl phthalate, diisobutyl phthalate, dibutyl phthalate, benzyl butyl phthalate, dicyclohexyl phthalate, bis(2‐ethylhexyl) phthalate and bis(2‐propylheptyl) phthalate in workplace air. With this measure procedure airborne phthalates in the gaseous state and bound to particles are collected simultaneously. Sampling is performed by drawing a defined volume of air through a sampling system consisting of a glass fibre filter located in a GSP sampling head and an adsorption tube filled with PU foam connected downstream using a suitable pump. The flow rate is set to 1 L/min with a recommended air sample volume of 60 to 120 litres. For sample preparation the collected phthalates are desorbed from the sample carriers with 1,4‐dioxane. The sample solutions are analysed by means of gas chromatography mass spectrometry (GC‐MS). The quantitative determination is based on calibration functions obtained by means of multiple‐point calibrations. The limit of quantification for the individual phthalate lies between 0.015 and 0.096 mg/m3.
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