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Titlu: Influence of the solution’s matrix in mercury analysis through HG-AAS [articol]
Autori: Andoni, Mihaela
Iovi, Aurel
Negrea, Petru
Lupa, Lavinia Afrodita
Bădescu, Anca
Subiecte: Mercury analysis
Interferences
HG-AAS
Data publicării: 2005
Editura: Timişoara: Editura Politehnica
Citare: Andoni, Mihaela. Influence of the solution’s matrix in mercury analysis through HG-AAS. Timişoara: Editura Politehnica, 2005
Serie/Nr. raport: Seria chimie şi ingineria mediului, Tom 50(64), fasc. 1-2 (2005)
Abstract: The paper presents the studies regarding the influence of the solution’s matrix in mercury analysis through HG-AAS. It has been monitored the influence of acids and salts on mercury analysis. In order to establish the influence of acids, there have been studied well-establish volumes of HCl conc., HNO3 conc., H3PO4 conc. and H2SO4 conc. that have been added to 100 mL of mercury synthetic solution with 50 ppm concentration, wich have been subjected to analysis. In order to establish the influence of salts, there have been studied well-defined volumes of NaCl 30%, KCl 10%, CaCl2 20%, MgCl2 10% and KI and solutions with well-defined concentrations that have been added to 100 ml synthetic solution of mercury with 50 ppb concentration, wich have been subjected to analysis The method of analysis that has been used has been the atomic absorption spectrometry combined with hydride system. It has been noticed that only HCl influences the analysis of Hg. HNO3, H3PO4 and H2SO4 and the salts do not influence within the concentration limit, so they do not lead to interferences.
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