Lower limits of detection in speciation analysis by coupling high-performance liquid chromatography and chemical-vapor generation

2011-04-01
Arslan, Yasin
Yildirim, Emrah
Gholami, Mehrdad
Bakirdere, Sezgin
Show full item record
Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
20
views
0
downloads
Speciation studies are much more important than total element determination because toxicity of many elements depends on their chemical forms. Nobody can claim that a foodstuff is very dangerous to eat by determining total arsenic due to the possibility that the arsenic could be present in non-toxic forms. Hence, speciation studies are crucial in any matrix relevant to human beings.
Arsenic, Atomic absorption spectrometri, Atomic fluorescence spectroscopy, Chemical-vapor generation, Limit of detection, High-performance liquid chromatography, Inductively coupled plasma mass spectrometry, On-line oxidation/reduction, Speciation, Trace element
https://hdl.handle.net/11511/67599
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
Department of Chemistry, Article

Suggestions

On-line preconcentration, speciation and determination of chromium by flame atomic absorption spectrometry(faas) and chemiluminescence
Sürdem, Sedat; Volkan, Mürvet; Department of Chemistry (2004)
Toxicological studies have shown that the degree of toxicity of some elements depends on the chemical form in which the element is present. Chromium (III) is considered as an essential micronutrient for human whereas chromium (VI) is a potentially carcinogenic agent. So the speciation of inorganic chromium in environmental samples is required for accurate assessment of pollution levels. The chromium content in natural water is usually very low, and a preconcentration is often necessary prior to the determin...
Atom trapping vapor generation atomic absorption spectrometry for inorganicarsenic speciation analysis /
Njie, Njaw; Ataman, Osman Yavuz; Department of Chemistry (2014)
Speciation analysis is important for arsenic. Novel methods to improve the sensitivity for determination of total arsenic and arsenic speciation have been developed. The techniques basically rely on generation of volatile arsenic species by reaction with sodium borohydride followed by trapping on a W-coil atomizer and finally releasing analyte atoms by heating the atomizer; the system is named as W-coil atom trapping electrothermal atomic absorption spectrometry (WC-ETAAS). Sample solution may be introduced...
Impacts of multistressors on the survival and life history traits of Daphnia Pulex
Bezirci, Gizem; Beklioğlu, Meryem; Department of Biology (2008)
As Daphnia have an important role in freshwater food webs, it is important to understand how environmental stressors affect their survival and life history traits. Daphnia pulex were first acutely exposed to a combination of NaCl salinities (0.00-10.0 g/L) and fish-exuded kairomone. The 24 and 48 hour LC50 values were 0.401 and 0.159 g/L in kairomone-absence and 1.962 and 1.007 g/L in kairomone-presence. Hence, survival decreased with increasing salinity, while the kairomone enhanced daphnid resistance to s...
High performance Pt nanoparticles prepared by new surfactants for C-1 to C-3 alcohol oxidation reactions
ŞEN, FATİH; Gökağaç Arslan, Gülsün; Sen, Selda (Springer Science and Business Media LLC, 2013-09-07)
In this study, platinum nanoparticles have been prepared using PtCl4 as a starting material and 1-hexylamine, N-methylhexylamine, N,N-dimethylhexylamine, 1-heptylamine, N-methylheptylamine, and N, N-dimethylheptylamine as surfactants. All these surfactants were used in this synthesis, for the first time, to explore the effect of primary, secondary, and tertiary amine and chain length on the size and catalytic activity toward C1-C3 alcohol electro-oxidation. The electrochemical performance of all catalysts w...
Determination of germanium by AAS in chloride-containing matrices
Anwari, MA; Abbasi, HU; Volkan, Mürvet; Ataman, Osman Yavuz (1996-06-01)
Interference effects of NaCl on the ET-AAS determination of Ge have been studied. The use of several matrix modifiers to alleviate this problem such as Ni and Zn perchlorates and nitrates, nitric acid, ammonium nitrate are reported. The stabilizing effect of Zn and Ni perchlorates allows the use of high pretreatment temperatures. NaCl is thus thermally volatilized from the atomizer by employing pretreatment temperatures higher than 1500 degrees C resulting in an improved sensitivity. Germanium levels in zin...
Citation Formats
Y. Arslan, E. Yildirim, M. Gholami, and S. Bakirdere, “Lower limits of detection in speciation analysis by coupling high-performance liquid chromatography and chemical-vapor generation,” TRAC-TRENDS IN ANALYTICAL CHEMISTRY, pp. 569–585, 2011, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/67599.
METU IIS - Integrated Information Service open@metu.edu.tr