TY - CONF T2 - International Symposium on Analytical and Environmental Problems (22.) (2016) (Szeged) Y1 - 2016/// AV - public A1 - Gorica Vukovi? A1 - Vojislava Bursi? A1 - Miroslav Agarski A1 - Tijana Zeremski A1 - ?urovi?-Pej?ev Rada UR - http://acta.bibl.u-szeged.hu/56107/ TI - Polar pesticide analyses : validation of glyphosate determination in soil by LC-MS/MS VL - 22 EP - 326 ID - acta56107 SN - 978-963-306-507-5 SP - 323 KW - Peszticid KW - Analitikai kémia N2 - Although glyphosate is a heavily applied herbicide worldwide, the risk of environmental contamination through transport mechanisms of this substance is still not well documented and the methods for its analysis are usually very complex and nor sensitive enough. In the measurement procedure with LC-MS/MS, a negative mode was used. FMOC-Cl derivatized glyphosate ions were identified by the precise determination of their ion mass. The LOQ was 0.01 mg/kg, with recovery of 101.4ą4.49% and linearity over 0.99. The obtain method demonstrates the sensitivity, which enables measurements of glyphosate soil as a matrix. The success of the new extraction method was confirmed by measuring spiked soil samples to control recovery, linearity, LOD and LOQ. N1 - Bibliogr.: 326. p. ; összefoglalás angol nyelven ER -