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Title:Določevanje kadmija v vodi z elektrotermično atomsko absorpcijsko spektrometrijo
Authors:ID Simon, Lučka (Author)
ID Brodnjak Vončina, Darinka (Mentor) More about this mentor... New window
ID Gradišek, Ksenija (Comentor)
Files:.pdf UNI_Simon_Lucka_2014.pdf (2,39 MB)
MD5: 7B2F1EEE361A7FE2A4699749357EED56
 
Language:Slovenian
Work type:Undergraduate thesis
Typology:2.11 - Undergraduate Thesis
Organization:FNM - Faculty of Natural Sciences and Mathematics
Abstract:Diplomsko delo sem opravljala v Fizikalnem laboratoriju Službe kakovosti v Cinkarni Celje, d. d., kjer med drugim določajo tudi kadmij nizkih (sledov) koncentracij v vodah. Standard SIST EN ISO 15586:2003 opisuje metodo za določevanje nizkih koncentracij (sledov) kadmija v vodah. V standardu so navedene sposobnosti metode, dobljene z vrednotenjem medlaboratorijske primerjave, in optimalno območje določevanja kadmija v vodah od 0,4 µg/L do 4 µg/L, kar je območje, ki je zanimivo za matrice pitnih, površinskih in podzemnih vod ter deževnic. Preverili smo ali lahko s spektrometrom Varian SpectrAA DUO, AA 240Z GTA 12 dosežemo parametre standarda in zahteve Pravilnika o pitni vodi. Metodo za določanje kadmija v vodah s spektrometrom Varian SpectrAA DUO, AA 240Z GTA 120 smo validirali in ocenili merilno negotovost.
Keywords:kadmij, voda, validacija, merilna negotovost
Place of publishing:Maribor
Publisher:[L. Simon]
Year of publishing:2014
PID:20.500.12556/DKUM-46235 New window
UDC:543.3:543.421:546.48(043.2)
COBISS.SI-ID:20873736 New window
NUK URN:URN:SI:UM:DK:ENDQ3198
Publication date in DKUM:22.10.2014
Views:2466
Downloads:183
Metadata:XML DC-XML DC-RDF
Categories:FNM
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Secondary language

Language:English
Title:Determination of cadmium in water with electrothermal atomic absorption spectrometry (ETAAS)
Abstract:I wrote my thesis working in the Physics laboratory of the Department of Quality Assurance of Cinkarna Celje, d. d., where, among others, trace elements in water are being detected. The SIST EN ISO Standard 15586:2003 includes principles and procedures for the determination of trace levels of Cadmium in waters. The characteristics of the method were acquired by inter-laboratory comparison evaluation, and are listed in the standard, along with the optimal range of determining Cadmium in waters (from 0,4 µg/L to 4 µg/L) – the range, optimal for the matrices of surface-, underground-, drinking water and rainwater. Using the Varian SpectrAA DUO AA 240Z GTA 12, we have tried to reach the parameters of the standard and drinking water regulations. We have validated the method for detecting Cadmium in waters with the Varian SpectrAA DUO AA 240Z GTA 12 spectrometer, and evaluated the measurement uncertainty.
Keywords:Cadmium, water, validation, measurement uncertainty


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