Validacija ispitivanja ukupnog organskog ugljika u vodama metodom visokotemperaturne katalitičke oksidacije

master's thesis

• Title (english): Validation of testing organic carbon in waters by high temperature catalytic oxidation method
• Author: Ana Ljubić
• Mentor: Monika Zovko (mentor)
• Committee member: Monika Zovko (predsjednik povjerenstva)
• Committee member: Aleksandra Perčin (član povjerenstva)
• Committee member: Marko Vinceković (član povjerenstva)
• Granter: University of Zagreb; Faculty of Agriculture; (Department of Soil Amelioration); Zagreb
• Defense date and country: 2019-09-30, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Agronomy

Abstract

Voda sadrži različite spojeve, pa tako i spojeve organskog porijekla u koje ubrajamo ukupni organski ugljik (TOC). Stoga, potrebno je odrediti koncentraciju TOC-a u vodi zato što povišene količine TOC-a narušavaju njenu ispravnost i kvalitetu. Da bi odredili koncentracije TOC-a u vodi provode se analize poput visokotemperaturne katalitičke oksidacije, a da bi utvrdili je li ta metoda dobra za određivanje TOC-a, mora se provesti postupak validacije. Validacijom se utvrđuje pouzdanost i točnost provođene metode i njezinih rezultata. U ovom istraživanju uzeti su uzorci sa potoka Bliznec i Divlje vode u kojima je visokotemperaturnom katalitičkom oksidacijom određena koncentracija TOC-a. Postupkom validacije odnosno validacijskim parametrima (preciznost (ponovljivost i obnovljivost), linearnost, granica detekcije i granica kvantifikacije) utvrđeno je da je određivanje TOC-a visokotemperaturnom katalitičkom oksidacijom točno i precizno, isto tako i rezultati metode su pouzdani i točni.

Abstract (english)

Water contains different substances, including compounds of organic origin such as total organic carbon (TOC). Consequently, it is necessary to determine the concentration of TOC in water because the elevated concentrations of TOC disturb water’s quality and correctness. For determination TOC concentrations in water, high - temperature catalytic oxidation method is used and to determine that this method is good for TOC determination, procedure of a validation is used. The validation determines the reliability and accuracy of the method and its results. In this research, samples were taken from the streams Bliznec and Divlja voda where the concentration of the TOC in water was determined by high - temperature catalytic oxidation method. The validation and validation parameters (precision (repeatability and reproducibility), linearity, limit of detection and limit of quantification) determine that the determination of TOC by high - temperature catalytic oxidation method is accurate and precise, and the results of the method are reliable and accurate.

• Keywords: Validacija; TOC; validacijski parametri
• Keywords (english): Validation; TOC; validation parameters
• Language: croatian
• URN:NBN: urn:nbn:hr:204:917287
• Study programme: Title: Agroecology; Study programme type: university; Study level: graduate; Academic / professional title: magistar/ magistra inženjer/inženjerka agroekologija (magistar/ magistra inženjer/inženjerka agroekologija)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Repository: Repository Faculty of Agriculture University of Zagreb
• Created on: 2019-12-09 07:36:36