Sample preperation methods for the determination of arsenic, copper, iron and lead in white sugar by atomic absorption spectroscopy

Download
035486.pdf
1994
Leblebici, Jale
Show full item record
144
views
0
downloads
https://hdl.handle.net/11511/8937
Graduate School of Natural and Applied Sciences, Thesis

Suggestions

Sample preparation for arsenic, copper, iron, and lead determination in sugar
Leblebici, J; Volkan, Mürvet (1998-01-01)
Two sample preparation methods were modified and optimized for the determination of As, Cu, Fe, and Pb in white sugar using atomic absorption spectrometry (AAS). Analyses were carried out using hydride generation AAS (HG-AAS) for As and flame AAS (FAAS) for Cu, Fe, and Pb. White sugar samples were prepared by dry ashing of the samples with H2SO4 and Mg(NO3)(2). Recoveries for As, Cu, Fe, and Pb were 87.6, 92.8, 95.8, 91.1% respectively, in ashing with H2SO4 They were 95.1, 92.4, 97.4, and 91.1%, respectivel...
Sample preparation with solid phase microextraction and exhaustive extraction approaches: Comparison for challenging cases
Boyacı, Ezel; Gorynski, Krzysztof; Mirnaghi, Fatemeh; Souza-Silva, Erica A.; Hein, Dietmar; Pawliszyn, Janusz (2015-05-11)
In chemical analysis, sample preparation is frequently considered the bottleneck of the entire analytical method. The success of the final method strongly depends on understanding the entire process of analysis of a particular type of analyte in a sample, namely: the physicochemical properties of the analytes (solubility, volatility, polarity etc.), the environmental conditions, and the matrix components of the sample. Various sample preparation strategies have been developed based on exhaustive or non-exha...
Sample design and allocation for random digit dialling
Ayhan, HO; İslam, Muhammed Qamarul (Springer Science and Business Media LLC, 2005-10-01)
Sample design and sample allocation methods are developed for random digit dialling in household telephone surveys. The proposed method is based on a two-way stratification of telephone numbers. A weighted probability proportional to size sample allocation technique is used, with auxiliary variables about the telephone coverage rates, within local telephone exchanges of each substrata. This makes the sampling design nearly "self-weighting" in residential numbers when the prior information is well assigned. ...
Sample libraries to expedite materials experience for design: A survey of global provision
Akin, Fazil; Pedgley, Owaın Francıs (Elsevier BV, 2016-01-15)
Material libraries provide designers with a hands-on resource to understand materials and related properties beyond what is possible through datasheets, catalogues and online resources. This paper reports a survey of global material libraries (n= 17) to establish their variety in character and features. Directors, curators, managers and librarians participated in the survey. The principal motivation was to expose the make-up of existing libraries against a series of principal criteria, such that the concept...
Sampling and GC-MS Determination of volatile organic compounds in laboratory and houses by solid phase microextraction (SPME)
Elçi, Şükrü Gökhan; Boyacı, Ezel; Eroğlu, Ahmet Emin (2010-04-22)
Citation Formats
J. Leblebici, “Sample preperation methods for the determination of arsenic, copper, iron and lead in white sugar by atomic absorption spectroscopy,” Middle East Technical University, 1994.
METU IIS - Integrated Information Service open@metu.edu.tr