Determination of trace anions by ion chromatography using conductvity and UV-VIS detectors

Zorlu, Hamide


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Alp, Orkun; Demiroz, Hakan; Ataman, Osman Yavuz; ERTAŞ, Nusret (2012-01-01)
Flow injection cold vapor atomic absorption spectrometry (FI-CVAAS) was used for determination of cadmium in high salt matrices such as dialysis concentrates and textile leach solutions. The parameters such as acidity, concentration of reducing agent, reaction coil length, and carrier gas flow rate were investigated to obtain the best sensitivity. No significant background signal was observed even at high salt concentrations. Under the optimized conditions the limit of detection value (3s(b) m(-1), where s(...
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Determination of zinc in aerosol samples by discrete nebulization flame atomic absorption spectrometry
Sarica, DY; Akim, D; Ozden, T (2002-01-01)
A well-known analytical method, "discrete nebulization", which is suitable for samples having a limited amount like body fluids, high solid content or salt solutions, and less volatile metals, has been further developed for zinc determination in aerosol samples.
Determination of silver by chemical vapour generation and atomic absoption spectrometry
Öztürk, Çağla Pınar; Ataman, Osman Yavuz; Department of Chemistry (2004)
A method for determination of silver has been developed based on chemical vapour generation atomic absorption spectrometry (CVGAAS). Volatile species of silver in acidified medium were generated by the reduction of sodium tetrahydroborate; these species were sent to a flame-heated quartz tube atomizer (QTA) following isolation by using a gas-liquid separator. Flow injection (FI) was used for sample introduction. Optimization of parameters such as; concentrations of acid and NaBH4 concentration, flow rates o...
Determination of germanium at trace levels by chloride generation atomic absorption spectrometry
Kaya, Murat; Volkan, Mürvet; Department of Chemistry (2004)
Trace amounts of germanium is determined by flame atomic absorption spectrometry by utilizing the vaporization of germanium tetrachloride. Using a continuous flow reactor, sample solution is mixed with concentrated hydrochloric acid and heated to 80ð C to form volatile germanium tetrachloride which can be subsequently sent to N2O-C2H2 flame AAS. The necessary conditions for the volatilization of germanium tetrachloride are investigated in detail and the applicability of the method for the determination of t...
Citation Formats
H. Zorlu, “Determination of trace anions by ion chromatography using conductvity and UV-VIS detectors,” Middle East Technical University, 1992.