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TITLE:
Validació de l’anàlisi de Na i Mg en galetes mitjançant l’espectrometria d’absorció i emissió atòmiques - TFG:1368
Handle: https://hdl.handle.net/20.500.11797/TFG1368

Student:Ribas López, Verónica
Language:cat
Title in original language:Validació de l’anàlisi de Na i Mg en galetes mitjançant l’espectrometria d’absorció i emissió atòmiques
Title in different languages:Validation of Na and Mg analysis in biscuits by atomic emission and absorption spectrometry
Keywords:validation, atomic spectrometry, biscuits
Subject:Química
Abstract:This work has been done in the Valls Analytical Laboratory, it is a laboratory for analysis and control of quality. They are mainly dedicated to water, food and soil analysis. . The main objectives are to determine the quality parameters necessary to validate the method for determining sodium and magnesium in biscuits by atomic absorption and emission spectrometry. These parameters are linearity, linearity interval, detection and quantification limits, selectivity, precision and veracity. The other objective is to decide which technique is most appropriate if the EAA or EEA to determine the sodium in the biscuits. . The sample used in the validation is the certified reference material used as reference LGC7 103 Sweet digestive biscuit. . The linearity interval obtained to determine sodium by atomic emission spectrometry is 0,8 to 10 mg/L. The detection and quantification limits respectively are 0,05 and 0,17 mg/L. . In the case of Na determined by absorption the linearity interval goes from 0,8 to 10 mg/L. The detection and quantification limits are respectively 0,10 and 0,34 mg/L. . For the Mg determined by atomic absorption spectrometry the linearity interval ranges from 0,2 to 2,5 mg/L. The detection and quantification limits are respectively 0,03 and 0,10 mg/L. . In all three cases it has been shown that the method is precise and truthful. Therefore, it is also accurate. . The EEA and EAA are ideal for determining Na in biscuits, but it is preferred to use the EEA because the same flame is the source of radiation.
Project director:Roig Carbonell, Fidel
Work's codirector:Rius Ferrús, Xavier
Department:Química Analítica i Química Orgànica
Education area(s):Química
Entity:Universitat Rovira i Virgili (URV)
TFG credits:12
Creation date in repository:2018-01-19
Work's public defense date:2017-06-16
Academic year:2016-2017
Confidenciality:No
Subject areas:Chemistry
Access rights:info:eu-repo/semantics/openAccess
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