Experimental estimation of the systematic errors due to matrix interferences in trace analyses
- Department of Chemistry, Faculty of Mathematical and Physics Engineering, Tirana Albania.
- Department of Chemistry, Faculty of Natural Sciences, University of Tirana, Tirana, Albania.
- Departament of Chemistry, Fundaçao Universidade do Rio Grande,RS, Brasil.
- Abstract
- Keywords
- Cite This Article as
- Corresponding Author
In analytical chemistry, several types of errors are usually encountered when determinations of trace elements are carried out. The assessment of systematic error is of crucial importance, especially when complex samples have to be analyzed (Miller et al., 2010; Massart et al., 1988). This paper deals with the application of a simple method for the assessment of the constant and proportional systematic error on the determination of Li in a very complex sample, such as water oilfield brine, with a salinity several times higher than sea water, as well as on the determination of nitrates in a river water sample. Both types of systematic errors were found in oilfield water, while no systematic error affected the results of river water. The application of the standard addition method (SAM) might be a useful tool in overcoming the proportional systematic error, only in cases when the constant systematic error is not present.
[Edlira Baraj, Rajmonda Totoni, Alma Shehu, Felipe Niencheski, Majlinda Vasjari, Besnik Baraj (2015); Experimental estimation of the systematic errors due to matrix interferences in trace analyses Int. J. of Adv. Res. 3 (Oct). 704-709] (ISSN 2320-5407). www.journalijar.com
