Procedures of trophic chain samples preparation for determination of triazines by HPLC and metals by ICP-AES methods

The aim of this research was monitoring the distribution of atrazine and simazine as well as metals Pb, Cd, Zn, Al, Co, Ni, and V along with trophic chains: soil-vegetables and soil, carrot or grass and meat. Different techniques of herbicides extraction by means of many solvents were examined. Triazines were analysed by means of HPLC, metals by means of ICP-AES. Detection limits: LOD = 0.2 mu g ml(-1), determination limits: LOQ = 0.73 mu g ml(-1) for atrazine and LOD = 0.3 mu g ml(-1), LOQ = 1.12 mu g ml(-1) for simazine were obtained. The content (mu g g(-1)) of simazine in soil was in range: 3.45-8.60, in vegetable roots: 6.62-38.15, in vegetable leaves: 2.45-31.71, in rabbit fat: 0.13-49.90. The content (mu g g(-1)) of atrazine in soils was in range: 11.9-13.03, in vegetable roots: 13.61-92.90. In analysed material the particular metals after micro wave or dry digestion were determined in range (mu g g(-1)): Pb: 6.48-43.18; Cd: 0.11-0.57; Zn: 8.79-51.90; Al: 10.22-24.48; Co: 0.18-3.89; Ni: 0.37-6.36; V: 0.29-1.48. (c) 2005 Elsevier Ltd. All rights reserved.