Dichlorodiphenyltrichloroethane determination in air by thermal desorption gas chromatography-mass spectrometry.

Background: Current quantitative methods for airborne dichlorodiphenyltrichloroethane (DDT) require collection and extraction times of ≥ 12 h. The aim of this study was to develop a method for quantifying airborne DDT with a short (<4 h) collection and analysis time.

Results: Precision [relative standard deviation (RSD)] for each calibration point (0.