Untitled - MendelNet 2013 - Mendelova zemědělská a lesnická ...

MENDELNET 2013COMPARISON OF METHODS FOR DETERMINATIONOF SELECTED INDICATORS OF SURFACE WATER QUALITYZákoutská K. 1 , Elbl J. 2 , Oppeltová P. 11 Department of Applied and Landscape Ecology; Faculty of Agronomy, MendelUniversity in Brno, Zemedelska 1, 613 00 Brno, Czech Republic2 Department of Agrochemistry, Soil Science, Microbiology and Plant Nutrition, Facultyof Agronomy, Mendel University in Brno, Zemedelska 1, 613 00 Brno, Czech RepublicE-mail: katerina.zakoutska@mendelu.czABSTRACTOur objective was to find out, if two different methods for determination of water qualityindicators– spectrophotometric (SPM) and distillation-titration (DTM) – have comparable results.Distillation-titration method was done according to Peoples at all. (1986) and spectrophotometricmethod was done according to Hach-Lange methodology. Water sampling was realized in JizeraMountains on three respectively six sites. Results from both methods were compared within onewayanalysis of variance (ANOVA) in combination with Tukey´s test and graphic processing intoa chart, which are supplemented by tables. According to fixed standard deviation just twoof comparisons of SPM and DTM are above the significant level, so both methods are comparable.Key words: spectrophotometer, distillation-titration method, analysis of variance, Tukey´s test,mineral nitrogenAcknowledgments: This paper was carried out with the support of Internal Grant Agency ofFaculty of Agronomy, Mendel University in Brno, No. IP 23/2013.397 | P age