RT info:eu-repo/semantics/bachelorThesis T1 Development of analytical methods for detection of triazole pesticides based on HPLC with diode array or electrochemical detection A1 Rodríguez Vela, Marcos A2 Universidad de Valladolid. Facultad de Ciencias K1 Triazolic compounds K1 Analysis K1 HPLC-DAD K1 HPLC-ED AB Analytical methods for the determination of triazolic fungicides are needed because in human beings they can cause growth problems, alteration in sexual differentiation or even cancer. These fungicides used in agriculture are individual limited but not the combination of them being a health risk.The similarity of the compounds made necessary a prior separation using an HPLC system operating in reversed phase and isocratic mode of elution. The mobile phase used was 57:43 (v/v) acetonitrile and phosphate buffer solution. Diode Array detector was chosen in the UV/vis range because of the nonbonding electrons in their structures. The separation conditions were optimized and the linearity of the responses in a wide range of concentrations was checked.Further, the possibility to employ electrochemical detection was proven utilizing oxidation of these compounds using a boron-doped diamond electrode because of its properties. Nowadays, information of their redox activity is very limited. First, the oxidizability of the compounds was investigated and then an HPLC-ED analytical method was developed. YR 2020 FD 2020 LK http://uvadoc.uva.es/handle/10324/43298 UL http://uvadoc.uva.es/handle/10324/43298 LA eng DS UVaDOC RD 22-nov-2024