[Identification of organic substances by means of spectral methods in forensic toxicology. I. Infrared spectroscopy].

In the introduction the author gives an outline of the principles of infrared spectroscopy and possibilities of its use for the identification of organic substances. On examples from practice he demonstrates the use of infrared spectroscopy in forensic toxicology. He desribes methods for the isolation of substances from biological material and methods of their purification. The applied methods are used for common toxicological analyses. Attention is drawn to the possibility of comprehensive identification of the structure or a comound based on an analysis of the infrared spetrum and analysis of a mixture of two substances is is described. Infrared spectroscopy is a very suitable method for the unequivocal identification even of very small amounts of substances obtained from material (biological and corpora delicti) in intoxications with organic substances, such a as drugs, pesticides, etc.