Primjena derivacijske spektroskopije u određivanju mangana u pitkim vodama u prisustvu željeza

Merkler, Ana

prikaz prve stranice dokumenta Primjena derivacijske spektroskopije u određivanju mangana u pitkim vodama u prisustvu željeza

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master's thesis

Primjena derivacijske spektroskopije u određivanju mangana u pitkim vodama u prisustvu željeza

Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology, 2010. urn:nbn:hr:159:459163

Merkler, Ana

University of Zagreb
Faculty of Food Technology and Biotechnology
Department of Chemistry and Biochemistry
Laboratory for General and Inorganic Chemistry and Electroanalysis

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APA 6th Edition

Merkler, A. (2010). Primjena derivacijske spektroskopije u određivanju mangana u pitkim vodama u prisustvu željeza (Master's thesis). Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:159:459163

MLA 8th Edition

Merkler, Ana. "Primjena derivacijske spektroskopije u određivanju mangana u pitkim vodama u prisustvu željeza." Master's thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, 2010. https://urn.nsk.hr/urn:nbn:hr:159:459163

Chicago 17th Edition

Harvard

Merkler, A. (2010). 'Primjena derivacijske spektroskopije u određivanju mangana u pitkim vodama u prisustvu željeza', Master's thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, accessed 07 January 2025, https://urn.nsk.hr/urn:nbn:hr:159:459163

Vancouver

Merkler A. Primjena derivacijske spektroskopije u određivanju mangana u pitkim vodama u prisustvu željeza [Master's thesis]. Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology; 2010 [cited 2025 January 07] Available at: https://urn.nsk.hr/urn:nbn:hr:159:459163

IEEE

A. Merkler, "Primjena derivacijske spektroskopije u određivanju mangana u pitkim vodama u prisustvu željeza", Master's thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, Zagreb, 2010. Available at: https://urn.nsk.hr/urn:nbn:hr:159:459163

Cite this item: https://urn.nsk.hr/urn:nbn:hr:159:459163

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Title	Primjena derivacijske spektroskopije u određivanju mangana u pitkim vodama u prisustvu željeza
Title (english)	Application of derivate spectroscopy in determination of manganese in drinking water in the presence of iron
Author	Ana Merkler
Mentor	Damir Iveković (mentor)
Granter	University of Zagreb Faculty of Food Technology and Biotechnology (Department of Chemistry and Biochemistry) (Laboratory for General and Inorganic Chemistry and Electroanalysis) Zagreb
Defense date and country	2010-04-06, Croatia
Scientific / art field, discipline and subdiscipline	BIOTECHNICAL SCIENCES Biotechnology
Abstract	Kontrola kakvoće vode za piće nužna je zbog zadovoljavanja zakonskih kriterija o ispravnosti vode, kao i zbog uspješne provedbe tehnoloških postupaka pročišćavanja vode za piće. Jedna od skupina pokazatelja ispravnosti vode za piće koju je nužno pratiti je sadržaj pojedinih metala u vodi, među kojima se nalazi i mangan. Za određivanje mangana u vodi za piće razvijene su brojne analitičke metode, od kojih se svojom jednostavnošću ističu spektrofotometrijske metode. Nedostatak većine korištenih spektrofotometrijskih metoda za određivanje mangana je uporaba cijanida kao maskirnog reagensa za sprječavanje interferencije željeza. Cilj ovog rada bio je razviti jednostavnu spektrofotometrijsku metodu određivanja mangana u pitkoj vodi, s posebnim naglaskom na vode koje osim mangana u značajnijoj količini sadrže i željezo. Razvijena je metoda koja se temelji na mjerenju apsorbancije kompleksa između Mn2+ kationa i 4-(2-piridilazo) rezorcinola. Interferirajući efekt željeza izbjegnut je uporabom derivacijske spektrofotometrije, mjerenjem vrijednosti d2A/dλ2 pri 533 nm. Metoda omogućuje simultano određivanje željeza u binarnim smjesama, mjerenjem vrijednosti d2A/dλ2 pri 723 nm uz zadovoljavajuću osjetljivost i preciznost.
Abstract (english)	Quality control of drinking water is essential for meeting the legal criteria of water validity, as well as the successful implementation of technological processes of water purification. One group of indicators of water quality which is necessary to monitor is the content of certain metals, including manganese. For determination of manganese in drinking water there have been developed numerous analytical methods, but spectrophotometric methods stands out for its simplicity. The drawback of most used spectrophotometric method for determination of manganese is the use of cyanide as a masking reagent to prevent interference of iron. The aim of this study was to develop a simple spectrophotometric method for manganese determination in drinking water, with special emphasis on waters that beside significant amount of manganese, contain iron as well. A developed method is based on measuring the absorbance of the complexes between Mn2+ cations and 4-(2-pyridylazo) resorcinol. Iron interference was avoided by using derivative spectrometry and measuring the value of d2A/dλ2 at 533 nm. Simultaneous determination of Fe in binary mixtures with Mn was achieved with satisfactory sensitivity and precision by measuring the value of d2A/dl2 at 273 nm.
Keywords
Keywords (english)
Language	croatian
URN:NBN	urn:nbn:hr:159:459163
Study programme	Title: Biotechnology; specializations in: Biochemical Engineering Course: Biochemical Engineering Study programme type: university Study level: graduate Academic / professional title: diplomirani inženjer biotehnologije; smjer biokemijsko inženjerstvo (diplomirani inženjer biotehnologije; smjer biokemijsko inženjerstvo)
Type of resource	Text
File origin	Born digital
Access conditions	Access restricted to students and staff of home institution
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Repository	Repository of the Faculty of Food Technology and Biotechnology
Created on	2017-08-28 10:15:12