The practical manual describes the use of the main analytical methods (chromatography , spectrometry and electrochemistry) in determining trace amounts of harmful substances in food products , Drinking water , milk, Juices and Drinks , as well as in water extracts and gas discharges from toys and children's hygiene products . New technologies of carrying out analytical procedure (sampling, sample preparation and identification of priority pollutants), possibilities of modern analytical equipment and improvement of licensed methods of sanitary and chemical analysis are discussed. The optimal schemes of analysis of baby food and goods for children, as well as methods for determining harmful substances in the air of children's institutions are given For specialists in the field of environmental and sanitary control, employees of food industry laboratories and medical workers (hygienists, clinicians, toxicologists), as well as for students and postgraduates of chemical, environmental, biological and medical universities .