RT Journal Article SR Electronic A1 Divinová, V. A1 Svejkovská, B. A1 Novotný, O. A1 Velíšek, J. T1 Survey of 3-chloropropane-1,2-diol and its precursors in foods in the Czech Republic JF Czech Journal of Food Sciences YR 2004 VO 22 IS 10 SP S267 OP S271 DO 10.17221/10678-CJFS UL https://cjfs.agriculturejournals.cz/artkey/cjf-200410-0058.php AB A survey of the levels of 3-chloropropane-1,2-diol (3-MCPD) and its precursors in a range of selected retail food products in the Czech Republic is reported. The foods were selected according to their content of water, chlorides and lipids and included foods processed at high temperatures and/or stored for a long time. The content of 3-MCPD was determined by the GC/MS method using deuterium-labeled 3-MCPD. Water content and pH value of the analysed foods were determined together with the recognised precursors of 3-MCPD, fat, glycerol and chlorides. An insight into the level of 3-MCPD influenced by these variables has been done by principal components analysis.