Dr. Eitzer is an expert in the analysis of organic contaminants in a wide variety of matrixes. These contaminants can include industrial products such as polychlorinated biphenyls or agricultural chemicals such as pesticides. The matrixes can include soil, water, air, food products such as fruit and vegetables, and matrices related to honey bees. He has expertise in the analytical methods used to do these analyses including extraction and cleanup of samples. In addition, his expertise extends to the instrumental methods such as liquid chromatography/mass spectrometry and gas chromatography mass spectrometry used in the analysis of these samples.